code: def prod(shape):
      """Get product of the shape."""
      ret = 1
      for s in shape:
          ret *= s
      return ret
  
file_path: insightface/recognition/arcface_mxnet/symbol/memonger_v2.py
imports: import mxnet
  import math
label_desc: Use image node_id 1 for calling a global function with example usage: prod(shape) and returns: ret