Add non-public method to Sample

Author: suaaa7

python_ci/src/sample.py

@@ -3,5 +3,8 @@
 
 class Sample:
     def fetch_json(self, url: str) -> dict:
-        response = requests.get(url)
+        response = self._get_response(url)
         return response.json()
+
+    def _get_response(self, url: str) -> requests.models.Response:
+        return requests.get(url)