import type { LeafVertex } from './dag/graph';
import type { Area } from '../../treb-base-types/src/index';
export interface NotifierType {
    /** opaque user data */
    data?: any;
    /** function callback */
    callback?: (data?: any) => void;
}
export interface InternalNotifierType {
    /**
     * assigned ID. this is (optionally) used for mamagement
     */
    id: number;
    /** client */
    notifier: NotifierType;
    /** node */
    vertex: LeafVertex;
    /**  */
    state: number;
    /**
     * we preserve our target ranges instead of the formula. this allows us
     * to survive sheet name changes, as well as to rebuild when the original
     * context sheet disappears.
     */
    references: Area[];
}