export interface FileData {
    name: string;
    type: string;
    size: number;
    encoding: FileDataEncode;
    data: string;
}
export declare enum FileDataEncode {
    UTF8 = "utf8",
    BASE64 = "base64",
    BINARY = "binary"
}
export declare function normalToBase64String(file: File): Promise<string>;
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