/**
 * @file Index
 * @module unist-util-types/Index
 */

/**
 * Number of preceding [*siblings*][1] of a [*child*][2] node.
 *
 * [1]: https://github.com/syntax-tree/unist#sibling
 * [2]: https://github.com/syntax-tree/unist#child
 */
type Index = number

export type { Index as default }