code: def iconcat(a, b):
      "Same as a += b, for a and b sequences."
      if not hasattr(a, "__getitem__"):
          msg = "'%s' object can't be concatenated" % type(a).__name__
          raise TypeError(msg)
      a += b
      return a
  
imports: from builtins import abs
label_desc: Use image node_id 40 for calling a global function with example usage: iconcat(a, b) and returns: a