import Masked, { type MaskedOptions } from './base';
export type MaskedFunctionOptions = MaskedOptions<MaskedFunction>;
/** Masking by custom Function */
export default class MaskedFunction<Value = any> extends Masked<Value> {
    /** */
    mask: (value: string, masked: Masked) => boolean;
    /** Enable characters overwriting */
    overwrite?: boolean | 'shift' | undefined;
    /** */
    eager?: boolean | 'remove' | 'append' | undefined;
    /** */
    skipInvalid?: boolean | undefined;
    /** */
    autofix?: boolean | 'pad' | undefined;
    updateOptions(opts: Partial<MaskedFunctionOptions>): void;
    _update(opts: Partial<MaskedFunctionOptions>): void;
}
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