from moto.core.exceptions import RESTError class AutoscalingClientError(RESTError): code = 400 class ResourceContentionError(RESTError): code = 500 def __init__(self) -> None: super().__init__( "ResourceContentionError", "You already have a pending update to an Auto Scaling resource (for example, a group, instance, or load balancer).", ) class InvalidInstanceError(AutoscalingClientError): def __init__(self, instance_id: str): super().__init__("ValidationError", f"Instance [{instance_id}] is invalid.") class ValidationError(AutoscalingClientError): def __init__(self, message: str): super().__init__("ValidationError", message)