export declare type PredicateFn = (a: any) => boolean;
export declare type MapFn<A = any, B = any> = (x: A) => B;
export declare type KeyMapFn = MapFn<string, string>;
export interface CamelifyOptions {
    exclude: PredicateFn;
    keyMapper: KeyMapFn;
}
export declare const when: (p: PredicateFn, f: MapFn<any, any>) => (x: any) => any;
export declare const camelCaseifier: (options?: Partial<CamelifyOptions>) => (x: any) => any;
declare const _default: (x: any) => any;
export default _default;