code: def shape_concat(node):
      axis = node.parameters.axis
      output_shape = None
      for parent, idx in node.parents:
          if output_shape is None:
              output_shape = list(parent.output_shape)
          else:
              output_shape[axis] += parent.output_shape[axis]
      return tuple(output_shape)
  
file_path: MMdnn/mmdnn/conversion/caffe/shape.py
imports: from collections import namedtuple
  import math
label_desc: Use image node_id 11 for calling a global function with example usage: shape_concat(node) and returns: tuple