Having a function to escape identities allows creating more dynamic queries while reducing the risk of SQL Injection. psycopg has that: https://www.psycopg.org/psycopg3/docs/api/sql.html#psycopg.sql.Identifier.

Would it be enough to expose SQLIdentifier?

Workaround:

def identity_expression(value):
 return str(FunctionExpression("", ConstantExpression(value).alias("")))[1:-1]