code: def _shaped_random_array(shape, dtype):
      return numpy.random.uniform(-1, 1, shape).astype(dtype)
  
file_path: chainer/tests/chainer_tests/functions_tests/rnn_tests/test_function_tree_lstm.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 a global function with example usage: _shaped_random_array(shape, dtype) and returns: numpy