import { IMeasure } from '../types';
export type frequencySystems = 'metric';
export type frequencyUnits = 'mHz' | 'Hz' | 'kHz' | 'MHz' | 'GHz' | 'THz' | 'rpm' | 'deg/s' | 'rad/s';
export declare const frequency: IMeasure<frequencySystems, frequencyUnits>;