code: def check_forward(self, data):
      x = chainer.Variable(data)
      bx = functions.broadcast_to(x, self.out_shape)
  
      self.assertEqual(bx.data.shape, self.out_shape)
  
imports: import unittest
  import numpy
  import chainer
  from chainer.backends import cuda
  from chainer import functions
  from chainer import gradient_check
  from chainer import testing
  from chainer.testing import attr
  from chainer.utils import type_check
  import chainerx
label_desc: Use image node_id 2 for calling the TestBroadcastTo obj's underlying member method code with example usage: obj.check_forward(data) without return types