feat(googlesheets2): first pass at passing token (#198)

added test for codecov

toucan_connectors/google_sheets_2/google_sheets_2_connector.py

@@ -81,6 +81,10 @@ def _run_fetch(self, url, access_token):
         future = asyncio.ensure_future(self._get_data(url, access_token))
         return loop.run_until_complete(future)
 
+    def set_secrets(self, secrets: Dict[str, str]):
+        """Set the secrets from inside the main service."""
+        self.secrets = secrets
+
     def _retrieve_data(self, data_source: GoogleSheets2DataSource) -> pd.DataFrame:
         """
         Point of entry for data retrieval in the connector