from dify_graph.nodes.base.exc import BaseNodeError class ScheduleNodeError(BaseNodeError): """Base schedule node error.""" pass class ScheduleNotFoundError(ScheduleNodeError): """Schedule not found error.""" pass class ScheduleConfigError(ScheduleNodeError): """Schedule configuration error.""" pass class ScheduleExecutionError(ScheduleNodeError): """Schedule execution error.""" pass class TenantOwnerNotFoundError(ScheduleExecutionError): """Tenant owner not found error for schedule execution.""" pass