import { tStack, tStackMix, tStackOperator, tStackParent } from "../types";
export declare class PostfixStack {
    operators: tStackOperator[];
    output: tStackMix[];
    parentOutput: tStackParent;
    arguments: any;
    private outputIndex;
    constructor();
    reset(): void;
    cache: {
        output: (symbol: string) => void;
        restore: (cacheId: string, type?: tStack['type']) => void;
        merge: (cacheId: string) => void;
        argument: (cacheId: string) => void;
    };
}
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