Contains types that set the status code and corresponding headers of a response.
These types are designed to make it easier to respond correctly with a given status code. Each type takes in the minimum number of parameters required to construct a proper response with that status code. Some types take in responders; when they do, the responder finalizes the response by writing out additional headers and, importantly, the body of the response.
Sets the status of the response to 202 (Accepted).
Sets the status of the response to 400 (Bad Request).
Sets the status of the response to 201 (Created).
Creates a response with the given status code and underlying responder.
Sets the status of the response to 404 (Not Found).