Method can

packages/sdk/src/types.ts:485–485

* Dry-run validation — would dispatch(op) succeed? * Returns {ok:true} when dispatch would mutate the document, {ok:false,code,message} otherwise. * Use as a feature-detection gate: `const r = comp.can(op); if (!r.ok) return;` * Phase 3b ops return {ok:false,code:'E_NO_GSAP_TIMELINE'} until

(op: EditOp)

   * Phase 3b ops return {ok:false,code:'E_NO_GSAP_TIMELINE'} until parser engine ships.
   */
  can(op: EditOp): CanResult;

  // ── Events (one typed emitter — F10) ──────────────────────────────────────
  on(event: "change", handler: () => void): () => void;