code: def __init__(
      self, accept_flat_intents_slots, factor, use_bos, use_eos
  ):
      super().__init__(use_bos, use_eos)
      self.accept_flat_intents_slots = accept_flat_intents_slots
      self.factor = factor
  
imports: from typing import Dict, List, Optional, Set
  import numpy
  from pytext.common.constants import SpecialTokens, Token
  from pytext.config.component import Component, ComponentType
  from pytext.config.pytext_config import ConfigBase
  from pytext.data.data_structures.annotation import Annotation, Intent, Root, Slot
  from pytext.data.utils import VocabBuilder, Vocabulary
label_desc: Use image node_id 2 to create a new TreeMask object from inherited base classes: MaskingFunction with example: obj = TreeMask(accept_flat_intents_slots, factor, use_bos, use_eos)