[docs]classAvailability(BaseXmlModel,tag="availability",nsmap=NSMAP,skip_empty=True):"""VOSI Availability complex type. Parameters: available: (element) - Whether the service is currently available. up_since: (element) - The instant at which the service last became available. down_at: (element) - The instant at which the service is next scheduled to become unavailable. back_at: (element) - The instant at which the service is scheduled to become available again after a period of unavailability. note: (element) - A textual note concerning availability. """available:bool=element(tag="available")up_since:Optional[UTCTimestamp]=element(tag="upSince",default=None)down_at:Optional[UTCTimestamp]=element(tag="downAt",default=None)back_at:Optional[UTCTimestamp]=element(tag="backAt",default=None)note:Optional[list[str]]=element(tag="note",default_factory=list)