Append an (empty) response message that will be sent in response to the previously received operation request.

After a message for this operation has been appended, its elements can be set using the various SetElement methods.

Only one response can be appended to an Event. The behavior is undefined unless the Event is currently empty.

Note that using Name overloads is preferable, as the Name objects have better performance if they are re-used after being created.

Append an (empty) response message that will be sent in response to the previously received operation request.

After a message for this operation has been appended, its elements can be set using the various SetElement methods.

Only one response can be appended to an Event. The behavior is undefined unless the Event is currently empty.