/**
 * `* -> *` constructors
 */
export interface HKT<URI, A> {
    readonly _URI: URI;
    readonly _A: A;
}
/**
 * `* -> * -> *` constructors
 */
export interface HKT2<URI, E, A> extends HKT<URI, A> {
    readonly _E: E;
}
/**
 * `* -> *` constructors
 */
export interface URItoKind<A> {
}
/**
 * `* -> * -> *` constructors
 */
export interface URItoKind2<E, A> {
}
/**
 * `* -> *` constructors
 */
export declare type URIS = keyof URItoKind<any>;
/**
 * `* -> * -> *` constructors
 */
export declare type URIS2 = keyof URItoKind2<any, any>;
/**
 * `* -> *` constructors
 */
export declare type Kind<URI extends URIS, A> = URI extends URIS ? URItoKind<A>[URI] : any;
/**
 * `* -> * -> *` constructors
 */
export declare type Kind2<URI extends URIS2, E, A> = URI extends URIS2 ? URItoKind2<E, A>[URI] : any;