class_docstr: A mock result compiler used for testing.
code: def __init__(self, opt):
      super().__init__(opt)
      # Injecting mock dependancies
      self._mephisto_db = MockMephistoDB()
      self._mephisto_data_browser = MockMephistoBrowser()
  
imports: import unittest
  from typing import Any, Dict, List
  from parlai.crowdsourcing.utils.analysis import AbstractResultsCompiler
  from collections import defaultdict
label_desc: Use image node_id 1 to create a new MockResultsCompiler object from inherited base classes: AbstractResultsCompiler with example: obj = MockResultsCompiler(opt)