import type { MeasureKind } from "../conversions/types.js";
import type { MeasureKindByUnit, Unit } from "../types/units.js";
/**
 * Get the {@link MeasureKind} associated with a unit.
 *
 * @example
 * ```ts
 * getMeasure('m'); // MeasureKind.Length
 * ```
 * @example
 * ```ts
 * getMeasure('invalid'); // undefined
 * ```
 *
 * @param unit - The unit you want to get the measure kind of
 * @returns The {@link MeasureKind} corresponding to this unit of measure, or `undefined` if the unit is invalid
 *
 * @public
 */
export declare function getMeasureKind<U extends Unit>(unit: U): MeasureKindByUnit<U>;
/**
 * Get the {@link MeasureKind} associated with a unit.
 *
 * @example
 * ```ts
 * getMeasure('m'); // MeasureKind.Length
 * ```
 * @example
 * ```ts
 * getMeasure('invalid'); // undefined
 * ```
 *
 * @param unit - The unit you want to get the measure kind of
 * @returns The {@link MeasureKind} corresponding to this unit of measure, or `undefined` if the unit is invalid
 *
 * @public
 */
export declare function getMeasureKind(unit: string): MeasureKind | undefined;