Transforms WebSocket message flows into message flows of another type.
The transformation may be more than just converting from one message to another, it may also produce messages, such
as close messages with an appropriate error code if the message can't be consumed.
Transforms WebSocket message flows into message flows of another type.
The transformation may be more than just converting from one message to another, it may also produce messages, such as close messages with an appropriate error code if the message can't be consumed.