code: def generate_inputs(self):
      x = numpy.array(self.x).astype(self.x_dtype)
      W = numpy.random.uniform(-1, 1, self.w_shape).astype(self.w_dtype)
      return (
          x,
          W,
      )
  
imports: import unittest
  import numpy
  import chainer
  from chainer.backends import cuda
  from chainer.functions.connection import embed_id
  from chainer import gradient_check
  from chainer import testing
  from chainer.testing import attr
  from chainer.testing import backend
label_desc: Use image node_id 2 for calling the TestEmbedID obj's underlying member method code with example usage: obj.generate_inputs() and returns: x,  W