import { Optional } from '../types/Types';
import { Construct } from '../types/Constructor';
export declare function ifTrue<Out, In = unknown>(o: unknown, f: Construct<Out, NonNullable<In>>, alt: Construct<Out>): Out;
export declare function ifTrue<Out, In = unknown>(o: unknown, f: Construct<Out, NonNullable<In>>, alt?: Construct<Out>): Optional<Out>;
export declare function ifFalse<Out, In = unknown>(o: unknown, f: Construct<Out, NonNullable<In>>, alt: Construct<Out>): Out;
export declare function ifFalse<Out, In = unknown>(o: unknown, f: Construct<Out, NonNullable<In>>, alt?: Construct<Out>): Optional<Out>;
export declare function ifDefined<Out, In = unknown>(o: Optional<In>, f: Construct<Out, NonNullable<In>>, alt: Construct<Out>): Out;
export declare function ifDefined<Out, In = unknown>(o: Optional<In>, f: Construct<Out, NonNullable<In>>, alt?: Construct<Out>): Optional<Out>;
export declare function ifNotEmpty<Out, In = unknown>(o: In, f: Construct<Out, NonNullable<In>>, alt: Construct<Out>): Out;
export declare function ifNotEmpty<Out, In = unknown>(o: In, f?: Construct<Out, NonNullable<In>>, alt?: Construct<Out>): Optional<Out>;
export declare function ifNotEmpty<Out, In = unknown>(o: In, f: Construct<Out, NonNullable<In>>, alt?: Construct<Out>): Optional<Out>;