message: Update PrototypeTokenDocument for v9
  Closes
diff: +import type { PrototypeTokenDataConstructorData } from '../../common/data/data.mjs/prototypeTokenData';
  +
  +declare global {
  /**
  * An extended Document definition used specifically
  * This ensures that the PrototypeTokenData schema is used instead of the standard TokenData.
  */
  // eslint-disable-next-line @typescript-eslint/ban-ts-comment
  // @ts-ignore
  -declare class PrototypeTokenDocument extends TokenDocument {
  + class PrototypeTokenDocument extends TokenDocument {
  static get schema(): typeof foundry.data.PrototypeTokenData;
  +
  + /** @override */
  + update(
  + data?: DeepPartial<PrototypeTokenDataConstructorData> | undefined,
  + context?: (DocumentModificationContext & foundry.utils.MergeObjectOptions) | undefined
  + ): Promise<this | undefined>;
  + }
  }
  