Method dispatch

packages/muya/src/state/index.ts:124–136

(op: JSONOp, source = 'user' /* user, api */)

    }

    dispatch(op: JSONOp, source = 'user' /* user, api */) {
        const prevDoc = this.getState();
        this.apply(op);
        // TODO: remove doc in future
        const doc = this.getState();
        debug.log(JSON.stringify(op));
        this.muya.eventCenter.emit('json-change', {
            op,
            source,
            prevDoc,
            doc,
        });
    }

    getState(): TState[] {
        return deepClone(this._state);