Update @types/nlcst, utilities

lib/index.js

@@ -3,13 +3,9 @@
  * @typedef {import('unist').Parent} UnistParent
  * @typedef {import('unist-util-assert').AssertionError} AssertionError
  *
+ * @typedef {import('nlcst').Nodes} Nodes
+ * @typedef {import('nlcst').Parents} Parents
  * @typedef {import('nlcst').Root} Root
- * @typedef {import('nlcst').Content} Content
- */
-
-/**
- * @typedef {Root | Content} Node
- * @typedef {Extract<Node, UnistParent>} Parent
  */
 
 import nodeAssert from 'node:assert'
@@ -33,7 +29,7 @@ import {
  *   Thing to assert.
  * @param {UnistParent | null | undefined} [parent]
  *   Optional, valid parent.
- * @returns {asserts tree is Node}
+ * @returns {asserts tree is Nodes}
  *   Nothing.
  * @throws {AssertionError}
  *   When `tree` (or its descendants) is not a nlcst node.
@@ -53,7 +49,7 @@ export function assert(tree, parent) {
  *   Thing to assert.
  * @param {UnistParent | null | undefined} [parent]
  *   Optional, valid parent.
- * @returns {asserts tree is Parent}
+ * @returns {asserts tree is Parents}
  *   Nothing.
  * @throws {AssertionError}
  *   When `tree` is not a parent or its descendants are not nodes.
@@ -107,7 +103,7 @@ function unknown(node, parent) {
  *
  * @param {unknown} [tree]
  *   Thing to assert.
- * @returns {asserts tree is Parent}
+ * @returns {asserts tree is Parents}
  *   Nothing.
  * @throws {AssertionError}
  *   When `tree` is not a parent or its descendants are not nodes.

package.json

@@ -33,10 +33,10 @@
     "index.js"
   ],
   "dependencies": {
-    "@types/nlcst": "^1.0.0",
-    "@types/unist": "^2.0.0",
+    "@types/nlcst": "^2.0.0",
+    "@types/unist": "^3.0.0",
     "mapz": "^2.0.0",
-    "unist-util-assert": "^3.0.0",
+    "unist-util-assert": "^4.0.0",
     "zwitch": "^2.0.0"
   },
   "devDependencies": {