import type { FSWatcher, WatchOptions as ChokidarOptions } from 'chokidar';
export interface PrebuildOptions {
    /**
     * Enable use pre-built schema if found.
     *
     * @default process.env.NODE_ENV === "production"
     */
    enabled?: boolean;
    /**
     * If "targetPath" is set to `null`, pre-built schema generation is disabled
     * @default
     * "./mercurius-schema.json"
     */
    targetPath?: string | null;
}
export interface WatchOptions {
    /**
     * Enable file watching
     * @default false
     */
    enabled?: boolean;
    /**
     * Custom function to be executed after schema change
     */
    onChange?: (schema: string[]) => void;
    /**
     * Extra Chokidar options to be passed
     */
    chokidarOptions?: ChokidarOptions;
    /**
     * Unique watch instance
     *
     * `Specially useful for hot module replacement environments, preventing memory leaks`
     *
     * @default true
     */
    uniqueWatch?: boolean;
}
export interface LoadSchemaOptions {
    /**
     * Watch options
     */
    watchOptions?: WatchOptions;
    /**
     * Pre-build options
     */
    prebuild?: PrebuildOptions;
    /**
     * Don't notify to the console
     */
    silent?: boolean;
}
export declare function loadSchemaFiles(schemaPath: string | string[], { watchOptions, prebuild, silent }?: LoadSchemaOptions): {
    schema: string[];
    closeWatcher: () => Promise<boolean>;
    watcher: Promise<FSWatcher | undefined>;
};