export interface Unit {
    symbol: string;
    fromBase(value: number): number;
    toBase(value: number): number;
}
export interface SimpleUnitDefinition {
    symbol: string;
    factor: number;
    offset?: number;
}
export declare class SimpleUnit {
    symbol: string;
    factor: number;
    offset: number;
    constructor(symbol: string, factor: number, offset?: number);
    fromBase(value: number): number;
    toBase(value: number): number;
}