code: def test_stolen_reference_bug(self):
      def fish(val, cur):
          gc.collect()
          return 42
  
      UUID = psycopg2.extensions.new_type((2950,), "UUID", fish)
      psycopg2.extensions.register_type(UUID, self.conn)
      curs = self.conn.cursor()
      curs.execute(
          "select 'b5219e01-19ab-4994-b71e-149225dc51e4'::uuid"
      )
      curs.fetchone()
  
file_path: psycopg2/tests/test_bug_gc.py
imports: import psycopg2
  import psycopg2.extensions
  import unittest
  import gc
  from .testutils import ConnectingTestCase, skip_if_no_uuid
label_desc: Use image node_id 1 for calling the StolenReferenceTestCase obj's underlying member method code with example usage: obj.test_stolen_reference_bug() and returns: int