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Greetings. I want to send some specific `config` to backend at the start of whole `rsocket` interaction. It affects buisness logic, so I want to do it in better way. Now I just put that in `setupPayload` , but saw function `metadataPush` in `RSocket` class. Seems like this is something I need. Any details about it, guys?

Hey
Looks like setup payload is better way for it, if you for example want to validate sent config on setup, and reject setup

`metadataPuch` on other side, can be used multiple times during connection, to update this connection related config

If you will need to support updating config during connection lifetime - use `metadataPush`, if this is one time operation - use `setupPayload`