Refactor code-style

Author: wooorm

lib/index.js

@@ -1,10 +1,6 @@
 /**
  * @typedef {import('unist').Node} Node
- * @typedef {import('unist').Parent} Parent
- *
- * @typedef {string} Type
- * @typedef {Record<string, unknown>} Props
- * @typedef {import('unist-util-is').TestFunctionAnything} TestFunctionAnything
+ * @typedef {import('unist-util-is').Test} Test
  */
 
 import {convert} from 'unist-util-is'
@@ -17,7 +13,7 @@ let empty
  *
  * @param {Node} node
  *   Tree to traverse.
- * @param {null|undefined|Type|Props|TestFunctionAnything|Array<Type|Props|TestFunctionAnything>} [test]
+ * @param {Test} [test]
  *   `unist-util-is`-compatible test (such as a node type).
  * @returns {number}
  *   Exclusive descendants of `node` that pass `test`.