class_docstr: A parse tree node with a few extra methods.
class_docstr_tok: ["A","parse","tree","node","with","a","few","extra","methods","."]
code: def is_builtin(self, frame):
      return False
  
imports: import py
  import sys, inspect
  from compiler import parse, ast, pycodegen
  from py._code.assertion import BuiltinAssertionError, _format_explanation
  import types
label_desc: Use image node_id 1 for calling the Interpretable obj's underlying member method code with example usage: obj.is_builtin(frame) and returns: False