name : AutomationsApi.php
<?php

/**
 * AutomationsApi
 * PHP version 5
 *
 * @category Class
 * @package  MailchimpMarketing
 * @author   Swagger Codegen team
 * @link     https://github.com/swagger-api/swagger-codegen
 */

/**
 * Mailchimp Marketing API
 *
 * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen)
 *
 * OpenAPI spec version: 3.0.27
 * Contact: apihelp@mailchimp.com
 * Generated by: https://github.com/swagger-api/swagger-codegen.git
 * Swagger Codegen version: 2.4.12
 */

/**
 * NOTE: This class is auto generated by the swagger code generator program.
 * https://github.com/swagger-api/swagger-codegen
 * Do not edit the class manually.
 */

namespace MailchimpMarketing\Api;

use GuzzleHttp\Client;
use GuzzleHttp\ClientInterface;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\Psr7\MultipartStream;
use GuzzleHttp\Psr7\Request;
use GuzzleHttp\RequestOptions;
use MailchimpMarketing\ApiException;
use MailchimpMarketing\Configuration;
use MailchimpMarketing\HeaderSelector;
use MailchimpMarketing\ObjectSerializer;

class AutomationsApi
{
    protected $client;
    protected $config;
    protected $headerSelector;

    public function __construct(Configuration $config = null)
    {
        $this->client = new Client([
            'defaults' => [
                'timeout' => 120.0
            ]
        ]);
        $this->headerSelector = new HeaderSelector();
        $this->config = $config ?: new Configuration();
    }

    public function getConfig()
    {
        return $this->config;
    }

    public function archive($workflow_id)
    {
        $this->archiveWithHttpInfo($workflow_id);
    }

    public function archiveWithHttpInfo($workflow_id)
    {
        $request = $this->archiveRequest($workflow_id);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function archiveRequest($workflow_id)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/actions/archive';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'POST',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function deleteWorkflowEmail($workflow_id, $workflow_email_id)
    {
        $this->deleteWorkflowEmailWithHttpInfo($workflow_id, $workflow_email_id);
    }

    public function deleteWorkflowEmailWithHttpInfo($workflow_id, $workflow_email_id)
    {
        $request = $this->deleteWorkflowEmailRequest($workflow_id, $workflow_email_id);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function deleteWorkflowEmailRequest($workflow_id, $workflow_email_id)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }
        // verify the required parameter 'workflow_email_id' is set
        if ($workflow_email_id === null || (is_array($workflow_email_id) && count($workflow_email_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_email_id when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/emails/{workflow_email_id}';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }
        // path params
        if ($workflow_email_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_email_id' . '}',
                ObjectSerializer::toPathValue($workflow_email_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'DELETE',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function list($count = '10', $offset = '0', $fields = null, $exclude_fields = null, $before_create_time = null, $since_create_time = null, $before_start_time = null, $since_start_time = null, $status = null)
    {
        $response = $this->listWithHttpInfo($count, $offset, $fields, $exclude_fields, $before_create_time, $since_create_time, $before_start_time, $since_start_time, $status);
        return $response;
    }

    public function listWithHttpInfo($count = '10', $offset = '0', $fields = null, $exclude_fields = null, $before_create_time = null, $since_create_time = null, $before_start_time = null, $since_start_time = null, $status = null)
    {
        $request = $this->listRequest($count, $offset, $fields, $exclude_fields, $before_create_time, $since_create_time, $before_start_time, $since_start_time, $status);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function listRequest($count = '10', $offset = '0', $fields = null, $exclude_fields = null, $before_create_time = null, $since_create_time = null, $before_start_time = null, $since_start_time = null, $status = null)
    {
        if ($count !== null && $count > 1000) {
            throw new \InvalidArgumentException('invalid value for "$count" when calling AutomationsApi., must be smaller than or equal to 1000.');
        }


        $resourcePath = '/automations';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;
        // query params
        if ($count !== null) {
            $queryParams['count'] = ObjectSerializer::toQueryValue($count);
        }
        // query params
        if ($offset !== null) {
            $queryParams['offset'] = ObjectSerializer::toQueryValue($offset);
        }
        // query params
        if (is_array($fields)) {
            $queryParams['fields'] = $fields;
        } else
        if ($fields !== null) {
            $queryParams['fields'] = ObjectSerializer::toQueryValue($fields);
        }
        // query params
        if (is_array($exclude_fields)) {
            $queryParams['exclude_fields'] = $exclude_fields;
        } else
        if ($exclude_fields !== null) {
            $queryParams['exclude_fields'] = ObjectSerializer::toQueryValue($exclude_fields);
        }
        // query params
        if ($before_create_time !== null) {
            $queryParams['before_create_time'] = ObjectSerializer::toQueryValue($before_create_time);
        }
        // query params
        if ($since_create_time !== null) {
            $queryParams['since_create_time'] = ObjectSerializer::toQueryValue($since_create_time);
        }
        // query params
        if ($before_start_time !== null) {
            $queryParams['before_start_time'] = ObjectSerializer::toQueryValue($before_start_time);
        }
        // query params
        if ($since_start_time !== null) {
            $queryParams['since_start_time'] = ObjectSerializer::toQueryValue($since_start_time);
        }
        // query params
        if ($status !== null) {
            $queryParams['status'] = ObjectSerializer::toQueryValue($status);
        }


        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function get($workflow_id, $fields = null, $exclude_fields = null)
    {
        $response = $this->getWithHttpInfo($workflow_id, $fields, $exclude_fields);
        return $response;
    }

    public function getWithHttpInfo($workflow_id, $fields = null, $exclude_fields = null)
    {
        $request = $this->getRequest($workflow_id, $fields, $exclude_fields);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function getRequest($workflow_id, $fields = null, $exclude_fields = null)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;
        // query params
        if (is_array($fields)) {
            $queryParams['fields'] = $fields;
        } else
        if ($fields !== null) {
            $queryParams['fields'] = ObjectSerializer::toQueryValue($fields);
        }
        // query params
        if (is_array($exclude_fields)) {
            $queryParams['exclude_fields'] = $exclude_fields;
        } else
        if ($exclude_fields !== null) {
            $queryParams['exclude_fields'] = ObjectSerializer::toQueryValue($exclude_fields);
        }

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function listAllWorkflowEmails($workflow_id)
    {
        $response = $this->listAllWorkflowEmailsWithHttpInfo($workflow_id);
        return $response;
    }

    public function listAllWorkflowEmailsWithHttpInfo($workflow_id)
    {
        $request = $this->listAllWorkflowEmailsRequest($workflow_id);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function listAllWorkflowEmailsRequest($workflow_id)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/emails';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function getWorkflowEmail($workflow_id, $workflow_email_id)
    {
        $response = $this->getWorkflowEmailWithHttpInfo($workflow_id, $workflow_email_id);
        return $response;
    }

    public function getWorkflowEmailWithHttpInfo($workflow_id, $workflow_email_id)
    {
        $request = $this->getWorkflowEmailRequest($workflow_id, $workflow_email_id);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function getWorkflowEmailRequest($workflow_id, $workflow_email_id)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }
        // verify the required parameter 'workflow_email_id' is set
        if ($workflow_email_id === null || (is_array($workflow_email_id) && count($workflow_email_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_email_id when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/emails/{workflow_email_id}';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }
        // path params
        if ($workflow_email_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_email_id' . '}',
                ObjectSerializer::toPathValue($workflow_email_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function getWorkflowEmailSubscriberQueue($workflow_id, $workflow_email_id)
    {
        $response = $this->getWorkflowEmailSubscriberQueueWithHttpInfo($workflow_id, $workflow_email_id);
        return $response;
    }

    public function getWorkflowEmailSubscriberQueueWithHttpInfo($workflow_id, $workflow_email_id)
    {
        $request = $this->getWorkflowEmailSubscriberQueueRequest($workflow_id, $workflow_email_id);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function getWorkflowEmailSubscriberQueueRequest($workflow_id, $workflow_email_id)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }
        // verify the required parameter 'workflow_email_id' is set
        if ($workflow_email_id === null || (is_array($workflow_email_id) && count($workflow_email_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_email_id when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/emails/{workflow_email_id}/queue';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }
        // path params
        if ($workflow_email_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_email_id' . '}',
                ObjectSerializer::toPathValue($workflow_email_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function getWorkflowEmailSubscriber($workflow_id, $workflow_email_id, $subscriber_hash)
    {
        $response = $this->getWorkflowEmailSubscriberWithHttpInfo($workflow_id, $workflow_email_id, $subscriber_hash);
        return $response;
    }

    public function getWorkflowEmailSubscriberWithHttpInfo($workflow_id, $workflow_email_id, $subscriber_hash)
    {
        $request = $this->getWorkflowEmailSubscriberRequest($workflow_id, $workflow_email_id, $subscriber_hash);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function getWorkflowEmailSubscriberRequest($workflow_id, $workflow_email_id, $subscriber_hash)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }
        // verify the required parameter 'workflow_email_id' is set
        if ($workflow_email_id === null || (is_array($workflow_email_id) && count($workflow_email_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_email_id when calling '
            );
        }
        // verify the required parameter 'subscriber_hash' is set
        if ($subscriber_hash === null || (is_array($subscriber_hash) && count($subscriber_hash) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $subscriber_hash when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/emails/{workflow_email_id}/queue/{subscriber_hash}';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }
        // path params
        if ($workflow_email_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_email_id' . '}',
                ObjectSerializer::toPathValue($workflow_email_id),
                $resourcePath
            );
        }
        // path params
        if ($subscriber_hash !== null) {
            $resourcePath = str_replace(
                '{' . 'subscriber_hash' . '}',
                ObjectSerializer::toPathValue($subscriber_hash),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function listWorkflowEmailSubscribersRemoved($workflow_id)
    {
        $response = $this->listWorkflowEmailSubscribersRemovedWithHttpInfo($workflow_id);
        return $response;
    }

    public function listWorkflowEmailSubscribersRemovedWithHttpInfo($workflow_id)
    {
        $request = $this->listWorkflowEmailSubscribersRemovedRequest($workflow_id);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function listWorkflowEmailSubscribersRemovedRequest($workflow_id)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/removed-subscribers';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function getRemovedWorkflowEmailSubscriber($workflow_id, $subscriber_hash)
    {
        $response = $this->getRemovedWorkflowEmailSubscriberWithHttpInfo($workflow_id, $subscriber_hash);
        return $response;
    }

    public function getRemovedWorkflowEmailSubscriberWithHttpInfo($workflow_id, $subscriber_hash)
    {
        $request = $this->getRemovedWorkflowEmailSubscriberRequest($workflow_id, $subscriber_hash);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function getRemovedWorkflowEmailSubscriberRequest($workflow_id, $subscriber_hash)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }
        // verify the required parameter 'subscriber_hash' is set
        if ($subscriber_hash === null || (is_array($subscriber_hash) && count($subscriber_hash) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $subscriber_hash when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/removed-subscribers/{subscriber_hash}';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }
        // path params
        if ($subscriber_hash !== null) {
            $resourcePath = str_replace(
                '{' . 'subscriber_hash' . '}',
                ObjectSerializer::toPathValue($subscriber_hash),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function updateWorkflowEmail($workflow_id, $workflow_email_id, $body)
    {
        $response = $this->updateWorkflowEmailWithHttpInfo($workflow_id, $workflow_email_id, $body);
        return $response;
    }

    public function updateWorkflowEmailWithHttpInfo($workflow_id, $workflow_email_id, $body)
    {
        $request = $this->updateWorkflowEmailRequest($workflow_id, $workflow_email_id, $body);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function updateWorkflowEmailRequest($workflow_id, $workflow_email_id, $body)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }
        // verify the required parameter 'workflow_email_id' is set
        if ($workflow_email_id === null || (is_array($workflow_email_id) && count($workflow_email_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_email_id when calling '
            );
        }
        // verify the required parameter 'body' is set
        if ($body === null || (is_array($body) && count($body) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $body when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/emails/{workflow_email_id}';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }
        // path params
        if ($workflow_email_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_email_id' . '}',
                ObjectSerializer::toPathValue($workflow_email_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;
        if (isset($body)) {
            $_tempBody = $body;
        }

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'PATCH',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function create($body)
    {
        $response = $this->createWithHttpInfo($body);
        return $response;
    }

    public function createWithHttpInfo($body)
    {
        $request = $this->createRequest($body);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function createRequest($body)
    {
        // verify the required parameter 'body' is set
        if ($body === null || (is_array($body) && count($body) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $body when calling '
            );
        }

        $resourcePath = '/automations';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;


        // body params
        $_tempBody = null;
        if (isset($body)) {
            $_tempBody = $body;
        }

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'POST',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function pauseAllEmails($workflow_id)
    {
        $this->pauseAllEmailsWithHttpInfo($workflow_id);
    }

    public function pauseAllEmailsWithHttpInfo($workflow_id)
    {
        $request = $this->pauseAllEmailsRequest($workflow_id);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function pauseAllEmailsRequest($workflow_id)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/actions/pause-all-emails';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'POST',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function startAllEmails($workflow_id)
    {
        $this->startAllEmailsWithHttpInfo($workflow_id);
    }

    public function startAllEmailsWithHttpInfo($workflow_id)
    {
        $request = $this->startAllEmailsRequest($workflow_id);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function startAllEmailsRequest($workflow_id)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/actions/start-all-emails';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'POST',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function pauseWorkflowEmail($workflow_id, $workflow_email_id)
    {
        $this->pauseWorkflowEmailWithHttpInfo($workflow_id, $workflow_email_id);
    }

    public function pauseWorkflowEmailWithHttpInfo($workflow_id, $workflow_email_id)
    {
        $request = $this->pauseWorkflowEmailRequest($workflow_id, $workflow_email_id);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function pauseWorkflowEmailRequest($workflow_id, $workflow_email_id)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }
        // verify the required parameter 'workflow_email_id' is set
        if ($workflow_email_id === null || (is_array($workflow_email_id) && count($workflow_email_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_email_id when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/emails/{workflow_email_id}/actions/pause';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }
        // path params
        if ($workflow_email_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_email_id' . '}',
                ObjectSerializer::toPathValue($workflow_email_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'POST',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function startWorkflowEmail($workflow_id, $workflow_email_id)
    {
        $this->startWorkflowEmailWithHttpInfo($workflow_id, $workflow_email_id);
    }

    public function startWorkflowEmailWithHttpInfo($workflow_id, $workflow_email_id)
    {
        $request = $this->startWorkflowEmailRequest($workflow_id, $workflow_email_id);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function startWorkflowEmailRequest($workflow_id, $workflow_email_id)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }
        // verify the required parameter 'workflow_email_id' is set
        if ($workflow_email_id === null || (is_array($workflow_email_id) && count($workflow_email_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_email_id when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/emails/{workflow_email_id}/actions/start';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }
        // path params
        if ($workflow_email_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_email_id' . '}',
                ObjectSerializer::toPathValue($workflow_email_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'POST',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function addWorkflowEmailSubscriber($workflow_id, $workflow_email_id, $body)
    {
        $response = $this->addWorkflowEmailSubscriberWithHttpInfo($workflow_id, $workflow_email_id, $body);
        return $response;
    }

    public function addWorkflowEmailSubscriberWithHttpInfo($workflow_id, $workflow_email_id, $body)
    {
        $request = $this->addWorkflowEmailSubscriberRequest($workflow_id, $workflow_email_id, $body);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function addWorkflowEmailSubscriberRequest($workflow_id, $workflow_email_id, $body)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }
        // verify the required parameter 'workflow_email_id' is set
        if ($workflow_email_id === null || (is_array($workflow_email_id) && count($workflow_email_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_email_id when calling '
            );
        }
        // verify the required parameter 'body' is set
        if ($body === null || (is_array($body) && count($body) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $body when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/emails/{workflow_email_id}/queue';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }
        // path params
        if ($workflow_email_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_email_id' . '}',
                ObjectSerializer::toPathValue($workflow_email_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;
        if (isset($body)) {
            $_tempBody = $body;
        }

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'POST',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    public function removeWorkflowEmailSubscriber($workflow_id, $body)
    {
        $response = $this->removeWorkflowEmailSubscriberWithHttpInfo($workflow_id, $body);
        return $response;
    }

    public function removeWorkflowEmailSubscriberWithHttpInfo($workflow_id, $body)
    {
        $request = $this->removeWorkflowEmailSubscriberRequest($workflow_id, $body);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw $e;
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            $content = $responseBody->getContents();
            $content = json_decode($content);

            return $content;

        } catch (ApiException $e) {
            throw $e->getResponseBody();
        }
    }

    protected function removeWorkflowEmailSubscriberRequest($workflow_id, $body)
    {
        // verify the required parameter 'workflow_id' is set
        if ($workflow_id === null || (is_array($workflow_id) && count($workflow_id) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $workflow_id when calling '
            );
        }
        // verify the required parameter 'body' is set
        if ($body === null || (is_array($body) && count($body) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $body when calling '
            );
        }

        $resourcePath = '/automations/{workflow_id}/removed-subscribers';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // path params
        if ($workflow_id !== null) {
            $resourcePath = str_replace(
                '{' . 'workflow_id' . '}',
                ObjectSerializer::toPathValue($workflow_id),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;
        if (isset($body)) {
            $_tempBody = $body;
        }

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json', 'application/problem+json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json', 'application/problem+json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            $httpBody = $_tempBody;

            if($headers['Content-Type'] === 'application/json') {
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                if (is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                $httpBody = \GuzzleHttp\Psr7\build_query($formParams);
            }
        }


        // Basic Authentication
        if (!empty($this->config->getUsername()) && !empty($this->config->getPassword())) {
            $headers['Authorization'] = 'Basic ' . base64_encode($this->config->getUsername() . ":" . $this->config->getPassword());
        }

        // OAuth Authentication
        if (!empty($this->config->getAccessToken())) {
            $headers['Authorization'] = 'Bearer ' . $this->config->getAccessToken();
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\build_query($queryParams);
        return new Request(
            'POST',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    protected function createHttpClientOption()
    {
        $options = [];
        if ($this->config->getDebug()) {
            $options[RequestOptions::DEBUG] = fopen($this->config->getDebugFile(), 'a');
            if (!$options[RequestOptions::DEBUG]) {
                throw new \RuntimeException('Failed to open the debug file: ' . $this->config->getDebugFile());
            }
        }

        return $options;
    }
}

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