code: def test_intent_in(self):
      for s in self._get_input():
          r = self.module.test_in_bytes4(s)
          # also checks that s is not changed inplace
          expected = self._sint(s, end=4)
          assert r == expected, s
  
file_path: numpy/numpy/f2py/tests/test_string.py
imports: import os
  import pytest
  import textwrap
  import numpy
  from .None import util
label_desc: Use image node_id 3 for calling the TestFixedString obj's underlying member method code with example usage: obj.test_intent_in() without return types