code: def test_str_lstrip(self):
      self.run_test(
          "def str_lstrip(s): return s.lstrip()",
          "       ThiS iS a TeST        ",
          str_lstrip=[str],
      )
      self.run_test(
          "def str_lstrip_a(s): return s[0].lstrip()",
          "       ThiS iS a TeST        ",
          str_lstrip_a=[str],
      )
  
imports: from pythran.tests import TestEnv
  from pythran.typing import List
  import unittest
label_desc: Use image node_id 23 for calling the TestStr obj's underlying member method code with example usage: obj.test_str_lstrip() without return types