import type * as HlsModule from 'hls.js';
import type * as MidiModule from '@tonejs/midi';
export type FileViewerOptionalModuleLoader<T> = () => Promise<T>;
export declare const registerFileViewerHlsLoader: (loader: FileViewerOptionalModuleLoader<typeof HlsModule> | null) => void;
export declare const registerFileViewerMidiLoader: (loader: FileViewerOptionalModuleLoader<typeof MidiModule> | null) => void;
export declare const getFileViewerHlsLoader: () => FileViewerOptionalModuleLoader<typeof HlsModule> | null;
export declare const getFileViewerMidiLoader: () => FileViewerOptionalModuleLoader<typeof MidiModule> | null;