import { CourseWareItem } from '@classroom/infra/api';
import { CloudDriveResource, ConversionOption } from 'agora-edu-core';
export declare const h5Type = "ah5";
export declare const linkType = "alf";
export declare const imageTypes: string[];
export declare const mediaVideoTypes: string[];
export declare const mediaAudioTypes: string[];
export declare const convertableTypes: string[];
export declare const convertableDynamicTypes: string[];
export declare const supportedTypes: string[];
export declare const createCloudResource: (data: CourseWareItem) => CloudDriveResource | never;
export declare const conversionOption: (ext: string, scale?: number | undefined) => ConversionOption | undefined;
export declare const extractFileExt: (name: string) => string | undefined;
export declare const fileExt2ContentType: (fileExt: string) => string;