code: def generate_inputs(self):
      x = numpy.random.uniform(-1, 1, (2, 7, 3, 2)).astype(self.dtype)
      return (x,)
  
file_path: chainer/tests/chainer_tests/functions_tests/normalization_tests/test_local_response_normalization.py
imports: import numpy
  import six
  from chainer import functions
  from chainer import testing
  from chainer.testing import backend
label_desc: Use image node_id 2 for calling the TestLocalResponseNormalization obj's underlying member method code with example usage: obj.generate_inputs() and returns: x