class_docstr: Takes a batch of tokens and returns the masks of corresponding length
code: def __init__(self, *args, **kwargs):
      pass
  
imports: import numpy
  from deeppavlov.core.common.registry import register
  from deeppavlov.core.models.component import Component
label_desc: Use image node_id 1 to create a new Mask object from inherited base classes: Component with example: obj = Mask()