minor #10677 [Messenger] Added handled & sent stamps (ogizanagi)

This PR was merged into the master branch.

Discussion
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[Messenger] Added handled & sent stamps

Fixes #10661

Commits
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dcc498c [Messenger] Added handled & sent stamps

Author: javiereguiluz

components/messenger.rst

@@ -119,7 +119,15 @@ At the moment, the Symfony Messenger has the following built-in envelope stamps:
 #. :class:`Symfony\\Component\\Messenger\\Stamp\\ValidationStamp`,
    to configure the validation groups used when the validation middleware is enabled.
 #. :class:`Symfony\\Component\\Messenger\\Stamp\\ReceivedStamp`,
-   an internal item that marks the message as received from a transport.
+   an internal stamp that marks the message as received from a transport.
+#. :class:`Symfony\\Component\\Messenger\\Stamp\\SentStamp`,
+   a stamp that marks the message as sent by a specific sender.
+   Allows accessing the sender FQCN and the alias if available from the
+   :class:`Symfony\\Component\\Messenger\\Transport\\Sender\\SendersLocator`.
+#. :class:`Symfony\\Component\\Messenger\\Stamp\\ReceivedStamp`,
+   a stamp that marks the message as handled by a specific handler.
+   Allows accessing the handler returned value, the handler callable name
+   and its alias if available from the :class:`Symfony\\Component\\Messenger\\Handler\\HandlersLocator`.
 
 Instead of dealing directly with the messages in the middleware you receive the envelope.
 Hence you can inspect the envelope content and its stamps, or add any::