code: def _uniform(*shape):
      return numpy.random.uniform(-1, 1, shape).astype(numpy.float32)
  
imports: import unittest
  import numpy
  import chainer
  from chainer import backend
  from chainer.backends import cuda
  from chainer import functions
  from chainer import testing
  from chainer.testing import attr
label_desc: Use image node_id 1 for calling a global function with example usage: _uniform() and returns: numpy