import { Observable } from "rxjs";
/**
 * This should accept sorting params in some form:
 * - is sorting disabled?
 * - are we sorting by label or some property value, in case of the latter - how do we get the value?
 *
 * @note Nodes with same labels are returned in undefined order.
 * @internal
 */
export declare function sortNodesByLabelOperator<TNode extends {
    label: string;
}>(nodes: Observable<TNode>): Observable<TNode>;
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