old_contents: import pytest
  from ppb_vector import Vector2
  
  
  @pytest.fixture()
  def test_vector():
      return Vector2(10, 20)
  
  
  def test_vector_2_class_member_access(test_vector):
      assert test_vector.x == 10
      assert test_vector.y == 20
  
  
  def test_vector2_index_access(test_vector):
      assert test_vector[0] == 10
      assert test_vector[1] == 20
  
  
  def test_vector2_key_access(test_vector):
      assert test_vector['x'] == 10
      assert test_vector['y'] == 20
  
new_contents: import pytest
  from ppb_vector import Vector2
  
  
  @pytest.fixture()
  def vector():
      return Vector2(10, 20)
  
  
  def vector_2_class_member_access(vector):
      assert vector.x == 10
      assert vector.y == 20
  
  
  def vector2_index_access(vector):
      assert vector[0] == 10
      assert vector[1] == 20
  
  
  def vector2_key_access(vector):
      assert vector['x'] == 10
      assert vector['y'] == 20
  
subject: update fixture name