[Messenger] Add `BatchHandlerInterface` and `BatchHandlerTrait` mentions#17915

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OskarStark merged 1 commit intosymfony:5.4from

alexandre-daubois:batch-message-handler

Feb 20, 2023

Commits on Feb 17, 2023

[Messenger] Add `BatchHandlerInterface` and `BatchHandlerTrait` mentions
alexandre-daubois
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