code: def __str__(self):
      return self._data.__str__()
  
imports: from ...serialization.serializables import Serializable, FieldTypes, DictField, ReferenceField
  from ...utils import AttributeDict
  from ..base import Base
label_desc: Use image node_id 3 for calling the Entity obj's underlying member method code with example usage: obj.__str__() and returns: self