ChainMiddlewares returns a net/http.Handler that chains a list of Middlewares where the last middleware is a simple wrapper around the given lastHandler.

NewServer creates or only initializes (if server is nil) the runtime of a server with the default runtime if runtime is nil, and also initializes other fields that compose internal state.

SetErrorForMiddlewares tries to return the given error for the chained middlewares and returns true if it was possible.