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export interface EitherRightPrototype<Z> {  alt<Y>(container: Y): this;  ap<T extends EitherRightPrototype<K>, K>(container: T): this;  chain<T extends EitherRightPrototype<K>, K>(unaryFunction: (value: Z) => T): this;  extend<T extends EitherRightPrototype<Z>, K>(unaryFunction: (container: T) => K): this;  extract(): Z;  map<K>(unaryFunction: (value: Z) => K): this;  of<T extends EitherRightPrototype<Z>>(value: Z): this;  toString(): string;  zero(): typeof Either.Left;}
export interface EitherLeftPrototype<Z> {  alt<T extends EitherRightPrototype<K>, K, Y>(container: Y): T;  ap<T extends EitherRightPrototype<K>, K>(container: T): this;  chain<T extends EitherRightPrototype<Y>, K, Y>(unaryFunction: (value: K) => T): this;  extend<T extends EitherRightPrototype<Y>, K, Y>(unaryFunction: (container: T) => K): this;  map<K, Y>(unaryFunction: (value: Y) => K): this;  of<T extends EitherLeftPrototype<Z>>(value: Z): T;  toString(): string;  zero(): typeof Either.Left;}
declare namespace Either {  export function Right<T extends EitherRightPrototype<Z>, Z>(value: Z): T;  export function Right<T extends EitherRightPrototype<Z>, Z, K>(unaryFunction: (value: K) => Z): T;  export namespace Right {    export function is<Z>(container: Z): boolean;    export function of<T extends EitherRightPrototype<Z>, Z>(value: Z): T;    export function of<T extends EitherRightPrototype<Z>, Z, K>(unaryFunction: (value: K) => Z): T;  }  export function Left<T extends EitherLeftPrototype<E>, E>(value: E): T;  export function Left<T extends EitherLeftPrototype<E>, E, Z>(unaryFunction: (value: Z) => E): T;  export namespace Left {    export function is<Z>(container: Z): boolean;    export function of<T extends EitherLeftPrototype<E>, E>(value: E): T;    export function of<T extends EitherLeftPrototype<E>, E, Z>(unaryFunction: (value: Z) => E): T;  }  export function of<T extends EitherRightPrototype<Z>, Z>(value: Z): T;  export function of<T extends EitherRightPrototype<Z>, Z, K>(unaryFunction: (value: K) => Z): T;  export function zero(): typeof Left;}
export default Either;