psql variable to plpgsql?

Hi all

Is there a way to pass the value of a psql variable into function
code? I create a schema with help of psql variable

    \set SCHEMA_NAME LOGGER
    create
      schema :SCHEMA_NAME;

I would like to create a function that has the Schema hard coded like
    declare
       V_SCHEMA_NAME text := :SCHEMA_NAME;
    begin
but as the plpgsql code is within quotes, it Fails.

Kind regards

Thiemo

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