export declare const formDataUtils: {
    integer(key: string, col: string): string;
    boolean(key: string, col: string): string;
    string(key: string, col: string): string;
    json(key: string, col: string): string;
    date(key: string, col: string): string;
    float(key: string, col: string): string;
    bigint(key: string, col: string): string;
    references(key: string, col: string): string;
    file(key: string, col: string): string;
};