Sets the entity type on this response.
Sets the entity type on this response. The content type will be inferred from the instance type.
Returns true if the request has a property value set for the given property key
Returns true if the request has a property value set for the given property key
the property to test for
Returns the property value for the given property key.
Returns the property value for the given property key.
the property to test for
Adds a property to the request.
Adds a property to the request. Will replace any existing value for that property.
returns the new request with the added property