Bounded return bounded mailbox Push mailbox When the message queue is full, the sender will be blocked.

MailBox implementation is based on https://github.com/asynkron/protoactor-go.

IMailbox Each actor has a IMailbox, this is where the messages are enqueued before being processed by the actor when use unbounded mailbox, this means any number of messages can be enqueued into the mailbox.

Invoker Invocation provides abilities to invoke system messages, invoke user messages, and escalate failures.