class_docstr: Enum of filter operators.
  
  The data type of filter operator can be ``Equals``, ``NotEquals``, ``GreaterThan``,
  ``GreaterThanOrEqualTo``, ``LessThan``, ``LessThanOrEqualTo``, ``Contains``, ``Exists``,
  ``NotExists``, or ``In``.
class_docstr_tok: ["Enum","of","filter","operators",".","The","data","type","of","filter","operator","can","be","``","Equals","``",",","``","NotEquals","``",",","``","GreaterThan","``",",","``","GreaterThanOrEqualTo","``",",","``","LessThan","``",",","``","LessThanOrEqualTo","``",",","``","Contains","``",",","``","Exists","``",",","``","NotExists","``",",","or","``","In","``","."]
docstr: Override str method to return enum value.
code: def __str__(self):
      """Override str method to return enum value."""
      return str(self.value)
  
imports: from __future__ import absolute_import
  import abc
  from typing import Dict, Any, List
  from enum import Enum
  import attr
label_desc: Use image node_id 1 for calling the FilterOperatorEnum obj's underlying member method code with example usage: obj.__str__() and returns: str