import { StackItemBase } from './StackItemBase';
import { StackItemEnumerator } from './StackItemEnumerator';
interface Value {
    readonly key: StackItemBase;
    readonly value: StackItemBase;
}
export declare class StackItemIterator extends StackItemEnumerator<Value> {
    key(): StackItemBase;
    keys(): StackItemEnumerator;
    values(): StackItemEnumerator;
    concatIterator(other: StackItemIterator): StackItemIterator;
}
export {};