import { type ViewUpdate } from "@codemirror/view";
/**
 * Configuration for the tsSync extension
 */
interface TsSyncConfig {
    /**
     * Given an update object decide whether to take it (true)
     * or to skip updating TypeScript with this.
     */
    filterUpdate: (update: ViewUpdate) => boolean;
}
/**
 * Sync updates from CodeMirror to the worker.
 */
export declare function tsSync({ filterUpdate }?: TsSyncConfig): import("@codemirror/state").Extension;
export {};
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