export declare function convertToUnit(str: string | number | null | undefined, unit?: string): string | undefined;
export declare const getRefElement: (ref: HTMLElement | Element | {
    '$el': HTMLElement;
}) => HTMLElement | Element | null;
export declare function resolveFieldData<T = Record<string, unknown>>(obj: T | null | undefined, field: string | ((row: T) => unknown) | null | undefined, defaultValue?: unknown): unknown;
export declare const getFileSize: (bytes: number, decimals?: number) => (number | string)[] | string;