code: def _state_table_name(environment=None, layer=None, stage=None):
      
      if environment is None:
          # For backwards compatiblity
          environment = os.environ.get("HUMILIS_ENVIRONMENT")
      if layer is None:
          layer = os.environ.get("HUMILIS_LAYER")
  
      if stage is None:
          stage = os.environ.get("HUMILIS_STAGE")
  
      if environment:
          if stage:
              return "{environment}-{layer}-{stage}-state".format(
                  **locals())
          else:
              return "{environment}-{layer}-state".format(**locals())
docs: The name of the state table associated to a humilis deployment.