code: def _unstack(array):
      """Similar to `tf.unstack`."""
      num_splits = int(array.shape[0])
      return [
          np.squeeze(x, 0) for x in np.split(array, num_splits, axis=0)
      ]
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  from graph_nets import graphs
  import networkx
  import numpy
  from six.moves import range
  from six.moves import zip
label_desc: Use image node_id 7 for calling a global function with example usage: _unstack(array) and returns: unknown