import { Form, Operator } from './00_Declarations';
import { Frac } from './15_Frac';
export declare class NumberForm implements Form<Frac> {
    ops: Operator[];
    key: string;
    private form;
    constructor(form: Form<number>);
    split(x: Frac): Frac | null;
    pair(x: Frac): Frac | null;
    free(): [Frac, Frac];
}