export declare type FunctionType = (...args: unknown[]) => unknown;
export declare type EmptyFunctionType = () => void;
export declare type AsyncFunctionType = (...args: unknown[]) => Promise<unknown>;
/**
 * @title isFunction
 * @description 是函数
 * @param value {unknown}
 * @param strict {boolean=false} 严格模式
 * @returns {boolean}
 */
export declare function isFunction<T extends FunctionType>(value: unknown, strict?: boolean): value is T;
/**
 * @title isAsyncFunction
 * @description 是异步函数
 * @param value {any}
 * @returns {boolean}
 */
export declare function isAsyncFunction<T extends AsyncFunctionType>(value: unknown): value is T;
/**
 * @title likeFunction
 * @description 是函数
 * @param value {any}
 * @returns {boolean}
 * @version 0.4.0
 */
export declare function likeFunction<T extends FunctionType | AsyncFunctionType>(value: unknown): value is T;
/**
 * @title isEmptyFunction
 * @description 是空方法
 * @param value {unknown}
 * @returns {boolean}
 * @version 0.4.0
 */
export declare function isEmptyFunction(value: unknown): value is EmptyFunctionType;
/**
 * @title isEffectFunction
 * @description 是有效方法(非空方法)
 * @param value {unknown}
 * @returns {boolean}
 * @version 0.4.0
 */
export declare function isEffectFunction<T = FunctionType>(value: unknown): value is T;
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