Run TypeScript on the types

Author: sindresorhus

package.json

@@ -20,7 +20,7 @@
 		"node": ">=18"
 	},
 	"scripts": {
-		"test": "xo && c8 ava && tsd"
+		"test": "xo && c8 ava && tsd && tsc"
 	},
 	"files": [
 		"index.js",
@@ -72,6 +72,7 @@
 		"path-key": "^4.0.0",
 		"tempfile": "^5.0.0",
 		"tsd": "^0.31.0",
+		"typescript": "^5.4.5",
 		"which": "^4.0.0",
 		"xo": "^0.58.0"
 	},

tsconfig.json

@@ -0,0 +1,12 @@
+{
+	"compilerOptions": {
+		"module": "nodenext",
+		"moduleResolution": "nodenext",
+		"moduleDetection": "force",
+		"target": "ES2022",
+		"strict": true
+	},
+	"files": [
+		"index.d.ts"
+	]
+}