class_docstr: A connecting edge for a lineage graph.
class_docstr_tok: ["A","connecting","edge","for","a","lineage","graph","."]
docstr: Define string representation of ``Edge``.
  
  Format:
      {
          'source_arn': 'string',
          'destination_arn': 'string',
          'association_type': 'string'
      }
docstr_tok: ["Define","string","representation","of","``","Edge","``",".","Format",":","{","'source_arn","'",":","'string","'",",","'destination_arn","'",":","'string","'",",","'association_type","'",":","'string'","}"]
code: def __str__(self):
      """Define string representation of ``Edge``.
  
      Format:
          {
              'source_arn': 'string',
              'destination_arn': 'string',
              'association_type': 'string'
          }
  
      """
      return str(self.__dict__)
  
imports: from __future__ import absolute_import
  from datetime import datetime
  from enum import Enum
  from typing import Any, Optional, Union, List, Dict
  from json import dumps
  from re import sub, search
  from sagemaker.utils import get_module
  from sagemaker.lineage._utils import get_resource_name_from_arn
label_desc: Use image node_id 4 for calling the Edge obj's underlying member method code with example usage: obj.__str__() and returns: str