code: def test_to_timedelta_ignore_strings_unit(self):
      arr = np.array([1, 2, "error"], dtype=object)
      msg = "errors='ignore' is deprecated"
      with tm.assert_produces_warning(FutureWarning, match=msg):
          result = to_timedelta(arr, unit="ns", errors="ignore")
      tm.assert_numpy_array_equal(result, arr)
  
imports: from datetime import time, timedelta
  import numpy
  import pytest
  from pandas.compat import IS64
  from pandas.errors import OutOfBoundsTimedelta
  import pandas
  from pandas import Series, TimedeltaIndex, isna, to_timedelta
  import pandas._testing
  from pandas.core.arrays import TimedeltaArray
label_desc: Use image node_id 24 for calling the TestTimedeltas obj's underlying member method code with example usage: obj.test_to_timedelta_ignore_strings_unit() without return types