export type DurabilityPhase =
  | "before-task"
  | "during-task"
  | "after-task"
  | "after-effect-before-journal"
  | "after-journal-before-ack"
  | "after-ack";
export type DurabilityOperation =
  | "task"
  | "effect"
  | "attempt-write"
  | "event-append"
  | "completion-cas"
  | "heartbeat"
  | "lease"
  | "resume"
  | "cancellation";
export type DurabilityCutPoint = Readonly<{ readonly phase: DurabilityPhase; readonly operation: DurabilityOperation }>;
export const cutPoint = (phase: DurabilityPhase, operation: DurabilityOperation): DurabilityCutPoint =>
  Object.freeze({ phase, operation });