code: def test_suite():
      return unittest.TestLoader().loadTestsFromName(__name__)
  
file_path: psycopg2/tests/test_cancel.py
imports: import time
  import threading
  import psycopg2
  import psycopg2.extensions
  from psycopg2 import extras
  from .testconfig import dsn
  import unittest
  from .testutils import ConnectingTestCase, skip_before_postgres, slow
  from .testutils import skip_if_crdb
label_desc: Use image node_id 1 for calling a global function with example usage: test_suite() and returns: unittest