import { IConfigurationParams, IKeyMap } from './../types/common';
import { IStringMap } from "../types/common";
export declare function deepEqual(x: any, y: any): any;
export declare function curry<T, K, L>(fn: (arg1: T, arg2: K) => L, arg1: T): (arg2: K) => L;
export declare function iif(value: any, fallback?: any): any;
export declare function nullish(value?: any): boolean;
export declare function defined(value?: any): boolean;
export declare function iifNull(value: any, fallback?: any): any;
export declare function extendMap(key: string, value: any, map?: IKeyMap): {
    [x: string]: any;
};
export declare function extendStringMap(key: string, value: string, map?: IStringMap): {
    [x: string]: string;
};
export declare function safeParseInt(num: string | number, fallback?: number): any;
export declare function filterDuplicatesByKey<T, K extends keyof T>(items: T[], compareKey: K): (item: T, index: number) => boolean;
export declare function extendMapWithDefaults<T extends IConfigurationParams>(options: T, defaults: IConfigurationParams): T;