code: def get_causal_edge(stmt, activates):
      
      any_contact = any(
          evidence.epistemics.get('direct', False)
          for evidence in stmt.evidence
      )
      if any_contact:
          return pc.DIRECTLY_INCREASES if activates else pc.DIRECTLY_DECREASES
  
      return pc.INCREASES if activates else pc.DECREASES
docs: Returns the causal, polar edge with the correct "contact".