code: def get(self, key, default):
      return self.fields.get(key, default)
  
imports: from dataclasses import dataclass, field
  from functools import singledispatch
  from typing import Any, Dict, Type, Union
  import numpy
label_desc: Use image node_id 2 for calling the Schema obj's underlying member method code with example usage: obj.get(key, default) and returns: self