code: def test_empty_nonzero(self):
      df = DataFrame([1, 2, 3])
      assert not df.empty
      df = DataFrame(index=[1], columns=[1])
      assert not df.empty
      df = DataFrame(index=["a", "b"], columns=["c", "d"]).dropna()
      assert df.empty
      assert df.T.empty
  
imports: from copy import deepcopy
  import inspect
  import pydoc
  import numpy
  import pytest
  from pandas._config import using_pyarrow_string_dtype
  from pandas._config.config import option_context
  import pandas
  from pandas import DataFrame, Series, date_range, timedelta_range
  import pandas._testing
label_desc: Use image node_id 15 for calling the TestDataFrameMisc obj's underlying member method code with example usage: obj.test_empty_nonzero() without return types