import { RcFile, UploadFile } from './interfaces';
/** Upload fileList. Replace file if exist or just push into it. */
export declare function updateFileList(file: UploadFile, fileList: UploadFile[]): UploadFile[];
export declare function getFileItem(file: RcFile, fileList: UploadFile[]): UploadFile;
export declare function removeFileItem(file: UploadFile, fileList: UploadFile[]): UploadFile[] | null;
export declare const isImageUrl: (file: UploadFile) => boolean;
export declare const isVideoUrl: (file: UploadFile) => boolean;
export declare function previewImage(file: File | Blob): Promise<string>;