code: def test_timedelta_conversions(self):
      assert Timedelta(timedelta(seconds=1)) == np.timedelta64(
          1, "s"
      ).astype("m8[ns]")
      assert Timedelta(timedelta(microseconds=1)) == np.timedelta64(
          1, "us"
      ).astype("m8[ns]")
      assert Timedelta(timedelta(days=1)) == np.timedelta64(
          1, "D"
      ).astype("m8[ns]")
  
imports: from datetime import timedelta
  import sys
  from hypothesis import given, strategies
  import numpy
  import pytest
  from pandas._libs import lib
  from pandas._libs.tslibs import NaT, iNaT
  from pandas._libs.tslibs.dtypes import NpyDatetimeUnit
  from pandas.errors import OutOfBoundsTimedelta
  from pandas import Timedelta, to_timedelta
  import pandas._testing
label_desc: Use image node_id 8 for calling the TestTimedeltas obj's underlying member method code with example usage: obj.test_timedelta_conversions() without return types