code: def test_groupby_sample_with_empty_inputs():
      # GH48459
      df = DataFrame({"a": [], "b": []})
      groupby_df = df.groupby("a")
  
      result = groupby_df.sample()
      expected = df
      tm.assert_frame_equal(result, expected)
  
file_path: pandas/pandas/tests/groupby/methods/test_sample.py
imports: import pytest
  from pandas import DataFrame, Index, Series
  import pandas._testing
label_desc: Use image node_id 11 for calling a global function with example usage: test_groupby_sample_with_empty_inputs() without return types