/** @packageDocumentation
 * @module Quantity
 */
import { UnitProps } from "./Interfaces";
/** This class provides basic implementation of UnitProps interface.
 * @beta
 */
export declare class BasicUnit implements UnitProps {
    name: string;
    label: string;
    phenomenon: string;
    isValid: boolean;
    system: string;
    constructor(name: string, label: string, phenomenon: string, system?: string);
}
/** This class is a convenience class that can be returned when a valid Unit cannot be determined.
 * @beta
 */
export declare class BadUnit implements UnitProps {
    name: string;
    label: string;
    phenomenon: string;
    isValid: boolean;
    system: string;
}
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