All classes that implement MailchimpHttpClientInterface in Mailchimp 8
- class \Mailchimp\Tests\MailchimpTestHttpClient implements MailchimpHttpClientInterface
- class \Mailchimp\http\MailchimpCurlHttpClient implements MailchimpHttpClientInterface
- class \Mailchimp\http\MailchimpGuzzleHttpClient implements MailchimpHttpClientInterface