/**
 * @param {number} levels
 * @returns {void}
 */
export function shiftStack(levels: number): void;
/**
 * @template SCHEMA
 */
export class DocSchema<SCHEMA> {
    /**
     * @param {SCHEMA} [typeCarrier]
     */
    constructor(typeCarrier?: SCHEMA);
    /**
     * @returns {CheckResult}
     */
    get lastError(): CheckResult;
    /**
     * @returns {Ast | null}
     */
    get ast(): Ast | null;
    /**
     * Check and return either true or false
     *
     * @param {any} value
     * @returns {boolean}
     * @throws {Error} If the schema has not been created yet
     */
    approves(value: any): boolean;
    /**
     * Check and return an object with information about the check
     *
     * @param {any} value
     * @returns {CheckResult}
     * @throws {Error} If the schema has not been created yet
     */
    check(value: any): CheckResult;
    /**
     * Check and throw an error if the input value is invalid,
     * otherwise return it
     *
     * @template T
     * @param {T} value
     * @returns {T extends SCHEMA ? SCHEMA : SCHEMA}
     * @throws {ValidationError | Error}
     * If the schema has not been created yet, or if the
     * validation is not successful
     */
    validate<T>(value: T): T extends SCHEMA ? SCHEMA : SCHEMA;
    #private;
}