/** @packageDocumentation
 * @module Settings
 */
import * as React from "react";
import type { UnitSystemKey } from "@itwin/core-quantity";
/** Props for [[UnitSystemSelector]]
 * @beta
 */
export interface UnitSystemSelectorProps {
    selectedUnitSystemKey: UnitSystemKey;
    onUnitSystemSelected: (unitSystem: UnitSystemKey) => void;
    availableUnitSystems: Set<UnitSystemKey>;
}
/** Select control to set the "active" Presentation Unit System. This setting determine what units are display for quantity values (i.e. foot vs meter).
 * @alpha
 */
export declare function UnitSystemSelector(props: UnitSystemSelectorProps): React.JSX.Element;
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