/**
 * Defines objects in which elements can be pushed, like arrays.
 *
 * @since 2.6.0
 */
export interface Pushable<in D = unknown> {
    /**
     * Adds given item in the element
     * @param item
     */
    push(item: D): void;
}
/**
 * Defines objects in which elements can be added, like sets.
 *
 * @since 2.6.0
 */
export interface Addable<in D = unknown> {
    /**
     * Adds given item in the element
     * @param item
     */
    add(item: D): void;
}
/**
 * Defines objects in which elements can be either added or pushed.
 *
 * @since 2.6.0
 */
export type Extendable<D = unknown> = Pushable<D> | Addable<D>;
export type AnyExtendable<D = any> = Extendable<D>;