code: def check_type_forward(self, in_types):
      type_check._argname(in_types, ("x", "t"))
      x_type, t_type = in_types
  
      type_check.expect(
          x_type.dtype.kind == "f",
          t_type.dtype.kind == "i",
          t_type.shape == x_type.shape,
      )
  
file_path: chainer/chainer/functions/evaluation/binary_accuracy.py
imports: from __future__ import division
  from chainer import backend
  from chainer import function
  from chainer.utils import type_check
label_desc: Use image node_id 1 for calling the BinaryAccuracy obj's underlying member method code with example usage: obj.check_type_forward(in_types) without return types