export class Env {
    /** @param {Env|null} [parent] */
    constructor(parent?: Env | null);
    /** @type {{ [key: string]: any }} */ vars: {
        [key: string]: any;
    };
    /** @type {{ [key: string]: any }} */ macros: {
        [key: string]: any;
    };
    /** @type {Env|null} */ parent: Env | null;
    /** @param {string} name @returns {any} */
    get(name: string): any;
    /** @param {string} name @returns {boolean} */
    has(name: string): boolean;
    /** @param {string} name @param {any} value */
    set(name: string, value: any): void;
    /** @param {string} name @param {any} macro */
    defMacro(name: string, macro: any): void;
    /** @param {string} name @returns {any} */
    lookupMacro(name: string): any;
    /** @returns {Env} */
    clone(): Env;
}