Method upgrade

src/lib/types/Monogatari.ts:45–45

(oldVersion: string, newVersion: string, callback: (...args: unknown[]) => Promise<void>)

  configuration(object?: Record<string, unknown> | null): Record<string, unknown> | undefined;
  rename(name: string): Promise<void>;
  upgrade(oldVersion: string, newVersion: string, callback: (...args: unknown[]) => Promise<void>): Promise<unknown>;
  onCreate(callback: (key: string, value: unknown) => void): void;
  onUpdate(callback: (key: string, value: unknown) => void): void;
  onDelete(callback: (key: string, value: unknown) => void): void;