code: def test_datetimetz_dtype_mismatch(dtype2):
      dtype = DatetimeTZDtype(unit="ns", tz="US/Eastern")
      assert find_common_type([dtype, dtype2]) == object
      assert find_common_type([dtype2, dtype]) == object
  
file_path: pandas/pandas/tests/dtypes/cast/test_find_common_type.py
imports: import numpy
  import pytest
  from pandas.core.dtypes.cast import find_common_type
  from pandas.core.dtypes.common import pandas_dtype
  from pandas.core.dtypes.dtypes import CategoricalDtype, DatetimeTZDtype, IntervalDtype, PeriodDtype
  from pandas import Categorical, Index
label_desc: Use image node_id 5 for calling a global function with example usage: test_datetimetz_dtype_mismatch(dtype2) without return types