code: def test_quantile_multi_empty(self, interp_method):
      interpolation, method = interp_method
      result = DataFrame({"x": [], "y": []}).quantile(
          [0.1, 0.9], axis=0, interpolation=interpolation, method=method
      )
      expected = DataFrame(
          {"x": [np.nan, np.nan], "y": [np.nan, np.nan]},
          index=[0.1, 0.9],
      )
      tm.assert_frame_equal(result, expected)
  
imports: import numpy
  import pytest
  import pandas
  from pandas import DataFrame, Index, Series, Timestamp
  import pandas._testing
label_desc: Use image node_id 15 for calling the TestDataFrameQuantile obj's underlying member method code with example usage: obj.test_quantile_multi_empty(interp_method) without return types