code: def func(self, xp, a):
      scalar = self.scalar_type(self.scalar_value)
      if xp is numpy:
          # This cast is to avoid TypeError in the following case
          #     a: uint8 0-dim numpy.ndarray
          #     scalar: int
          (in_dtype,) = self.in_dtypes
          scalar = _convert_numpy_scalar(scalar, in_dtype)
      return self.func_scalar(xp, a, scalar)
  
imports: import unittest
  import numpy
  import chainerx
  from chainerx_tests import array_utils
  from chainerx_tests import dtype_utils
label_desc: Use image node_id 1 for calling the InplaceMathScalarTestBase obj's underlying member method code with example usage: obj.func(xp, a) and returns: self