code: def __init__(self, flow):
      pass
  
imports: import sys
  import os
  from metaflow.exception import MetaflowException
  from metaflow import current
  from metaflow.cards import get_cards
  from metaflow.plugins.cards.exception import CardNotPresentException
label_desc: Use image node_id 1 to create a new MetaflowCheck object from inherited base classes: object with example: obj = MetaflowCheck(flow)