message: Update Canvas for v9.245
diff: @@ -72,6 +72,11 @@ declare global {
  */
  initialized: boolean;
  + /**
  + * A promise that resolves when the canvas is first initialized and ready.
  + */
  + initializing: Promise<void> | null;
  +
  /**
  * Track the timestamp of the last stage zoom operation
  * @defaultValue `0`
  