code: def test_inout_varia(self):
      f = getattr(self.module, self.fprefix + "_inout")
      a = np.array("abc", dtype="S3")
      f(a, "A")
      assert_array_equal(a, np.array("Abc", dtype=a.dtype))
  
      a = np.array(["abc"], dtype="S3")
      f(a, "A")
      assert_array_equal(a, np.array(["Abc"], dtype=a.dtype))
  
      try:
          f("abc", "A")
      except ValueError as msg:
          if not str(msg).endswith(" got 3-str"):
              raise
      else:
          raise SystemError(
              f"{f.__name__} should have failed on str value"
          )
  
imports: import pytest
  import textwrap
  from numpy.testing import assert_array_equal, assert_equal, assert_raises
  import numpy
  from numpy.f2py.tests import util
label_desc: Use image node_id 10 for calling the TestCharacter obj's underlying member method code with example usage: obj.test_inout_varia() without return types