add tsd check

.github/workflows/nodejs.yml

@@ -40,3 +40,5 @@ jobs:
         run: npm i
       - name: Test
         run: npm run test
+      - name: TSD Check
+        run: npx tsd-check

index.test-d.ts

@@ -0,0 +1,17 @@
+import { Pushgateway } from './index';
+
+const pushGateway = new Pushgateway('');
+pushGateway.push({ jobName: '' }).then(({ resp, body }) => {
+	console.log(resp);
+	console.log(body);
+});
+
+pushGateway.pushAdd({ jobName: '' }).then(({ resp, body }) => {
+	console.log(resp);
+	console.log(body);
+});
+
+pushGateway.delete({ jobName: '' }).then(({ resp, body }) => {
+	console.log(resp);
+	console.log(body);
+});

package.json

@@ -45,7 +45,8 @@
 		"typescript": "^4.0.2"
 	},
 	"dependencies": {
-		"tdigest": "^0.1.1"
+		"tdigest": "^0.1.1",
+		"tsd-check": "^0.6.0"
 	},
 	"types": "./index.d.ts",
 	"jest": {