code: def generate_inputs(self):
      c = _shaped_random(self.c_shape, self.dtype)
      x = _shaped_random(self.x_shape, self.dtype)
      return (
          c,
          x,
      )
  
imports: import unittest
  import numpy
  import six
  from chainer.backends import cuda
  import chainer.functions
  from chainer.functions.rnn import lstm
  from chainer import gradient_check
  from chainer import testing
  from chainer.testing import backend
label_desc: Use image node_id 2 for calling the LSTMTestBase obj's underlying member method code with example usage: obj.generate_inputs() and returns: c,  x