code: def __repr__(self):
      return "JSON"
  
imports: import json
  from typing import Any, Callable, Dict, NamedTuple, Optional, Type, Union
  from metaflow._vendor import click
  from .util import get_username, is_stringish
  from .exception import ParameterFieldFailed, ParameterFieldTypeMismatch, MetaflowException
label_desc: Use image node_id 3 for calling the JSONTypeClass obj's underlying member method code with example usage: obj.__repr__() and returns: str