export declare const FORM_DATA_MAIN_FIELD = "__telefunc_main";
export declare const SERIALIZER_PLACEHOLDER_KEY = "__telefunc_multipart";
export declare const SERIALIZER_PREFIX_FILE = "!TelefuncFile:";
export declare const SERIALIZER_PREFIX_BLOB = "!TelefuncBlob:";
export type FileMetadata = {
    key: string;
    name: string;
    size: number;
    type: string;
    lastModified: number;
};
export type BlobMetadata = {
    key: string;
    size: number;
    type: string;
};