import { BaseLiteralType } from '../base/literal.js';
import type { FieldOptions, Validation } from '../../types.js';
import { SUBTYPE } from '../../symbols.js';
/**
 * VineAccepted represents a checkbox or acceptance field that must be
 * checked or have an accepted value. This is commonly used for terms
 * of service acceptance, privacy policy agreements, etc.
 *
 * Accepted values are: 'on', '1', 'yes', 'true', true, or 1
 * The output is always normalized to the boolean value `true`.
 *
 * @example
 * const schema = vine.object({
 *   termsAccepted: vine.accepted(),
 *   newsletter: vine.accepted().optional()
 * })
 *
 * @example
 * // HTML form checkbox
 * // <input type="checkbox" name="terms" />
 * // When checked, sends "on" which is accepted
 */
export declare class VineAccepted extends BaseLiteralType<'on' | '1' | 'yes' | 'true' | true | 1, true, true> {
    /**
     * Static collection of all available validation rules for accepted fields
     */
    static rules: {
        accepted: (options?: undefined) => Validation<undefined>;
    };
    /**
     * The subtype identifier for the literal schema field
     */
    [SUBTYPE]: string;
    /**
     * Creates a new VineAccepted instance.
     *
     * @param options - Field options like bail mode and nullability
     * @param validations - Initial set of validations to apply
     */
    constructor(options?: Partial<FieldOptions>, validations?: Validation<any>[]);
    /**
     * Clones the VineAccepted schema type. The applied options
     * and validations are copied to the new instance.
     *
     * @returns A cloned instance of this VineAccepted schema
     */
    clone(): this;
}