import type { FieldValue, Maybe } from '../types';
/**
 * Returns whether the field is dirty.
 *
 * @param startValue The start value.
 * @param currentValue The current value.
 *
 * @returns Whether is dirty.
 */
export declare function isFieldDirty<TFieldValue extends FieldValue>(startValue: Maybe<TFieldValue>, currentValue: Maybe<TFieldValue>): boolean;