Type alias representing a Receive-expression for Akka Actors.
emptyBehavior is a Receive-expression that matches no messages at all, ever.
emptyBehavior is a Receive-expression that matches no messages at all, ever.
ignoringBehavior is a Receive-expression that consumes and ignores all messages.
ignoringBehavior is a Receive-expression that consumes and ignores all messages.
Default placeholder (null) used for "!" to indicate that there is no sender of the message, that will be translated to the receiving system's deadLetters.