code: def reflect_indexes_with_expressions(self):
      sqlalchemy = exclusions.only_if(
          lambda _: sqla_compat.sqla_2, "sqlalchemy 2 is required"
      )
  
      postgresql = exclusions.only_on(["postgresql"])
  
      return sqlalchemy + postgresql
  
imports: from sqlalchemy import exc
  from sqlalchemy import Index
  from sqlalchemy import text
  from alembic.testing import exclusions
  from alembic.testing.requirements import SuiteRequirements
  from alembic.util import compat
  from alembic.util import sqla_compat
label_desc: Use image node_id 53 for calling the DefaultRequirements obj's underlying member method code with example usage: obj.reflect_indexes_with_expressions() and returns: unknown