code: def test_str_accessor_updates_on_inplace(self):
      ser = Series(list("abc"))
      return_value = ser.drop([0], inplace=True)
      assert return_value is None
      assert len(ser.str.lower()) == 2
  
imports: import pytest
  from pandas import Series
  import pandas._testing
label_desc: Use image node_id 2 for calling the TestStrAccessor obj's underlying member method code with example usage: obj.test_str_accessor_updates_on_inplace() without return types