import { Sym } from '../scannerparser/Sym.js';
import { Identifier } from './Identifier.js';
import { Expression } from './Expression.js';
/**
 * A Production is a rule that defines how a non-terminal symbol is expanded into a sequence of terminal and/or non-terminal symbols. Defined as:
 *
 * `PRODUCTION = IDENTIFIER "=" EXPRESSION "." .`
 */
export declare class Production extends Sym {
    readonly ident: Identifier;
    readonly expr: Expression;
    constructor(ident: Identifier, expr: Expression, id?: number);
    toString(): string;
}