Re-export types from babel

Author: danez

.changeset/heavy-plums-repair.md

@@ -0,0 +1,9 @@
+---
+'react-docgen': minor
+---
+
+The types `NodePath` and `babelTypes` are now exported.
+
+These types are useful when building integrations in TypeScript.
+
+`babelTypes` includes all types from `@babel/types`.

packages/react-docgen/src/main.ts

@@ -61,6 +61,9 @@ function defaultParse(
   return parse(String(src), defaultConfig);
 }
 
+export type { NodePath } from '@babel/traverse';
+export type * as babelTypes from '@babel/types';
+
 export {
   builtinHandlers,
   builtinResolvers,