| Handler |
| QuerySerializer |
| RequestLocation |
| ResponseLocation |
| DescriptionInterface |
| Description | Represents a Guzzle service description |
| Deserializer | Handler used to create response models based on an HTTP response and a service description. |
| GuzzleClient | Default Guzzle web service client implementation. |
| Operation | Guzzle operation |
| Parameter | API parameter object used with service descriptions |
| SchemaFormatter | JSON Schema formatter class |
| SchemaValidator | Default parameter validator |
| Serializer | Serializes requests for a given command. |