rsg17 commented on a change in pull request #20542:
URL: https://github.com/apache/airflow/pull/20542#discussion_r777147763



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File path: airflow/providers/google/suite/hooks/calendar.py
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@@ -0,0 +1,213 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+"""This module contains a Google Calendar API hook"""
+
+from datetime import datetime
+from typing import Any, Dict, Optional, Sequence, Union
+
+from googleapiclient.discovery import build
+
+from airflow.exceptions import AirflowException
+from airflow.providers.google.common.hooks.base_google import GoogleBaseHook
+
+
+class GCalendarHook(GoogleBaseHook):
+    """
+    Interact with Google Calendar via Google Cloud connection
+    Reading and writing cells in Google Sheet:
+    https://developers.google.com/calendar/api/v3/reference
+
+    :param gcp_conn_id: The connection ID to use when fetching connection info.
+    :type gcp_conn_id: str
+    :param api_version: API Version
+    :type api_version: str
+    :param delegate_to: The account to impersonate using domain-wide 
delegation of authority,
+        if any. For this to work, the service account making the request must 
have
+        domain-wide delegation enabled.
+    :type delegate_to: str
+    :param impersonation_chain: Optional service account to impersonate using 
short-term
+        credentials, or chained list of accounts required to get the 
access_token
+        of the last account in the list, which will be impersonated in the 
request.
+        If set as a string, the account must grant the originating account
+        the Service Account Token Creator IAM role.
+        If set as a sequence, the identities from the list must grant
+        Service Account Token Creator IAM role to the directly preceding 
identity, with first
+        account from the list granting this role to the originating account.
+    :type impersonation_chain: Union[str, Sequence[str]]
+    """
+
+    def __init__(
+        self,
+        gcp_conn_id: str = 'google_cloud_default',
+        api_version: str = 'v3',

Review comment:
       I like the idea of not specifying API versions to avoid the breaking 
change. I have one question: how would it work if the parameters required for 
the actual API call changed between versions?
   
   I compared the [FB Ads 
API](https://developers.facebook.com/docs/marketing-api/insights/parameters/v12.0)
 with [Google 
Calendar](https://developers.google.com/calendar/api/v3/reference/events/list).
   
   - I think the [FB Ads 
API](https://developers.facebook.com/docs/marketing-api/insights/parameters/v12.0)
 is much more structured with just 3 input parameters - account_id, params 
(query parameters for the report), fields (list of fields for the report).
   - Compared with that, the [Google Calendar 
API](https://developers.google.com/calendar/api/v3/reference/events/list) has a 
lot of parameters.




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