code: def test_fillna_tzaware_different_column(self):
      # with timezone in another column
      # GH#15522
      df = DataFrame(
          {
              "A": date_range("20130101", periods=4, tz="US/Eastern"),
              "B": [1, 2, np.nan, np.nan],
          }
      )
      msg = "DataFrame.fillna with 'method' is deprecated"
      with tm.assert_produces_warning(FutureWarning, match=msg):
          result = df.fillna(method="pad")
      expected = DataFrame(
          {
              "A": date_range("20130101", periods=4, tz="US/Eastern"),
              "B": [1.0, 2.0, 2.0, 2.0],
          }
      )
      tm.assert_frame_equal(result, expected)
  
imports: import numpy
  import pytest
  from pandas._config import using_pyarrow_string_dtype
  from pandas import Categorical, DataFrame, DatetimeIndex, NaT, PeriodIndex, Series, TimedeltaIndex, Timestamp, date_range, to_datetime
  import pandas._testing
  from pandas.tests.frame.common import _check_mixed_float
label_desc: Use image node_id 11 for calling the TestFillNA obj's underlying member method code with example usage: obj.test_fillna_tzaware_different_column() without return types