/**
 * Returns `true` if type `A` extends type `B`, `false` if not
 *
 * @param A Type
 * @param B Type
 * @return Boolean
 */
export declare type DoesExtend<A, B> = A extends B ? true : false;
declare type ArrayKeys = keyof [];
/**
 * Returns `true` if type is object, `false` if not (excludes arrays)
 *
 * @param T Type
 * @return Boolean
 */
export declare type IsObject<T> = T extends object ? ArrayKeys extends Extract<keyof T, ArrayKeys> ? false : true : false;
/**
 * Returns `true` if type is array, `false` if not (excludes objects)
 *
 * @param T Type
 * @return Boolean
 */
export declare type IsArray<T> = T extends object ? ArrayKeys extends Extract<keyof T, ArrayKeys> ? true : false : false;
export {};