new_contents: # -*- coding: utf-8 -*-
  #
  # Licensed 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.
  #
  
  from airflow.contrib.hooks.gcs_hook import GoogleCloudStorageHook
  from airflow.models import BaseOperator
  import os
  
  
  class FileToGoogleCloudStorageOperator(BaseOperator):
      """
      Uploads a file to Google Cloud Storage
      """
  
      def __init__(self,
                   src,
                   dst,
                   bucket,
                   google_cloud_storage_conn_id='google_cloud_storage_default',
                   mime_type='application/octet-stream',
                   delegate_to=None,
                   *args,
                   **kwargs):
          """
          :param src: Path to the local file
          :type src: string
          :param dst: Destination path within the specified bucket
          :type dst: string
          :param bucket: The bucket to upload to
          :type bucket: string
          :param google_cloud_storage_conn_id: The Airflow connection ID to upload with
          :type google_cloud_storage_conn_id: string
          :param mime_type: The mime-type string
          :type mime_type: string
          :param delegate_to: The account to impersonate, if any
          :type delegate_to: string
          """
          super(FileToGoogleCloudStorageOperator, self).__init__(*args, **kwargs)
          self.src = src
          self.dst = dst
          self.bucket = bucket
          self.google_cloud_storage_conn_id = google_cloud_storage_conn_id
          self.mime_type = mime_type
          self.delegate_to = delegate_to
  
      def execute(self, context):
          """
          Uploads the file to Google cloud storage
          """
          hook = GoogleCloudStorageHook(
                  google_cloud_storage_conn_id=self.google_cloud_storage_conn_id,
                  delegate_to=self.delegate_to)
  
          hook.upload(
              bucket=self.bucket,
              object=self.dst,
              mime_type=self.mime_type,
              filename=self.src)
  
subject: Add file to GCS operator