Listen and notify in psql process

Hi Team,

How to listen from within a psql process and get the payloads?

Do Postgres have any such a mechanism where in a session a process send a
"listen <name>" sql command and then gets a message if someone in the other
session issued a "notify <name>".

Please provide an example of how to do this.

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*Thanks & Regards*
Sakshi Jain
New Delhi
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