from datetime import datetime from ninja import Schema class SolutionIn(Schema): title: str problem_signature: str related_system: str = "" environment_scope: str = "" root_cause: str solution: str risk_note: str = "" status: str = "draft" class SolutionOut(Schema): id: int title: str problem_signature: str related_system: str environment_scope: str root_cause: str solution: str risk_note: str status: str usage_count: int created_at: datetime updated_at: datetime class TicketSolutionLinkIn(Schema): ticket_id: int link_type: str = "referenced" agent_run_id: int | None = None class TicketSolutionLinkOut(Schema): id: int ticket_id: int solution_id: int link_type: str solution_usage_count: int created_at: datetime