text: import pathlib
  import sys
  import typing
  
  import pytest
  
  
  def pytest_configure(config):
      sys.path.insert(0, str(pathlib.Path(__file__).parents[1]))
  
  
  @pytest.fixture(scope='session')
  def typeT1():
      return typing.TypeVar('T1')
  
  
  @pytest.fixture(scope='session')
  def typeT2():
      return typing.TypeVar('T2')
  