fix: try splitting out types from default export

package.json

@@ -9,7 +9,12 @@
     ".": {
       "import": "./dist/index.mjs",
       "require": "./dist/index.js"
-    }
+    },
+    "./types": {
+      "import": "./dist/types.mjs",
+      "require": "./dist/types.js"
+    },
+    "./package.json": "./package.json"
   },
   "engines": {
     "node": ">=18"

src/index.ts

@@ -1,3 +1,4 @@
+import type { FetchHAROptions, RequestInitWithDuplex } from './types.js';
 import type { DataURL as npmDataURL } from '@readme/data-urls';
 import type { Har } from 'har-format';
 
@@ -24,25 +25,6 @@ if (!globalThis.File) {
   }
 }
 
-interface RequestInitWithDuplex extends RequestInit {
-  /**
-   * `RequestInit#duplex` does not yet exist in the TS `lib.dom.d.ts` definition yet the native
-   * fetch implementation in Node 18+, `undici`, requires it for certain POST payloads.
-   *
-   * @see {@link https://github.com/microsoft/TypeScript-DOM-lib-generator/issues/1483}
-   * @see {@link https://github.com/nodejs/node/issues/46221}
-   * @see {@link https://fetch.spec.whatwg.org/#request-class}
-   * @see {@link https://github.com/microsoft/TypeScript/blob/main/lib/lib.dom.d.ts}
-   */
-  duplex?: 'half';
-}
-
-export interface FetchHAROptions {
-  files?: Record<string, Blob | Buffer>;
-  init?: RequestInitWithDuplex;
-  userAgent?: string;
-}
-
 type DataURL = npmDataURL & {
   // `parse-data-url` doesn't explicitly support `name` in data URLs but if it's there it'll be
   // returned back to us.

src/types.ts

@@ -0,0 +1,18 @@
+export interface RequestInitWithDuplex extends RequestInit {
+  /**
+   * `RequestInit#duplex` does not yet exist in the TS `lib.dom.d.ts` definition yet the native
+   * fetch implementation in Node 18+, `undici`, requires it for certain POST payloads.
+   *
+   * @see {@link https://github.com/microsoft/TypeScript-DOM-lib-generator/issues/1483}
+   * @see {@link https://github.com/nodejs/node/issues/46221}
+   * @see {@link https://fetch.spec.whatwg.org/#request-class}
+   * @see {@link https://github.com/microsoft/TypeScript/blob/main/lib/lib.dom.d.ts}
+   */
+  duplex?: 'half';
+}
+
+export interface FetchHAROptions {
+  files?: Record<string, Blob | Buffer>;
+  init?: RequestInitWithDuplex;
+  userAgent?: string;
+}

tsup.config.ts

@@ -8,7 +8,7 @@ export default defineConfig((options: Options) => ({
 
   clean: true,
   dts: true,
-  entry: ['src/index.ts'],
+  entry: ['src/index.ts', 'src/types.ts'],
   format: ['esm', 'cjs'],
   minify: false,
   shims: true,