class_docstr: Generate random syntactically-valid Python ASTs.
code: def generate_Call(self):
      raise NotImplementedError
  
imports: import random
  import string
  import gast
  import numpy
  from tensorflow.python.autograph.pyct import templates
label_desc: Use image node_id 12 for calling the CodeGenerator obj's underlying member method code with example usage: obj.generate_Call() without return types