code: def test_dataframe_accessor_idendity(gdf1, gdf2):
      """Test for accessor identities
      - An object should hold persistent reference to the same accessor
      - Different objects should hold difference instances of the accessor
      """
  
      assert gdf1.point is gdf1.point
      assert gdf1.point is not gdf2.point
  
file_path: cudf/python/cudf/cudf/tests/test_custom_accessor.py
imports: import pandas
  import pytest
  import cudf
  from cudf.testing._utils import assert_eq
label_desc: Use image node_id 2 for calling a global function with example usage: test_dataframe_accessor_idendity(gdf1, gdf2) without return types