PipelineResponse Class 
A pipeline response object.
The PipelineResponse interface exposes an HTTP response object as it returns through the pipeline of Policy objects. This ensures that Policy objects have access to the HTTP response.
This also has a "context" object where policy can put additional fields. Policy SHOULD update the "context" with additional post-processed field if they create them. However, nothing prevents a policy to actually sub-class this class a return it instead of the initial instance.
Constructor
PipelineResponse(http_request: HTTPRequestType, http_response: HTTPResponseType, context: PipelineContext)Parameters
| Name | Description | 
|---|---|
| http_request 
				Required
			 | The request object. | 
| http_response 
				Required
			 | The response object. | 
| context 
				Required
			 | Contains the context - data persisted between pipeline requests. |