/**
 * 定义类，并且把方法混入类的原型中
 * 用以实现把类的方法实现和类的定义分离，方法可以实现在其他文件中
 *
 * @example
 *
 * ```ts
 * import {speak} from './sub/speak';
 * import {fly} from './sub/fly';
 * let Animal = defineClass(
 *       class Animal { constructor(public name: string) {}},
 *       { speak, fly }
 * );
 * ```
 *
 * @param classBase 基类构造函数
 * @param methods 要混入的方法对象
 * @returns 混合后的类构造函数
 */
export declare function defineClass<TBase extends Constructor, TMethods extends Record<string, any>>(classBase: TBase, methods: TMethods): {
    new (...args: ConstructorParameters<TBase>): Expand<InstanceType<TBase> & TMethods>;
} & TBase;
export type Constructor<T = any> = new (...args: any[]) => T;
/**
 * 展开类型，用于优化类型提示
 * Expand type for better type hints
 */
type Expand<T> = T extends infer O ? {
    [K in keyof O]: O[K];
} : never;
export {};
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