code: def test_asfreq_bug():
      df = DataFrame(
          data=[1, 3], index=[timedelta(), timedelta(minutes=3)]
      )
      result = df.resample("1min").asfreq()
      expected = DataFrame(
          data=[1, np.nan, np.nan, 3],
          index=timedelta_range("0 day", periods=4, freq="1min"),
      )
      tm.assert_frame_equal(result, expected)
  
imports: from datetime import timedelta
  import numpy
  import pytest
  import pandas.util._test_decorators
  import pandas
  from pandas import DataFrame, Series
  import pandas._testing
  from pandas.core.indexes.timedeltas import timedelta_range
label_desc: Use image node_id 1 for calling a global function with example usage: test_asfreq_bug() without return types