Close httplib2 connections.
  get(projectId, provisionalUserProject=None, userProject=None)
Get the email address of this project's Google Cloud Storage service account.
close()
  Close httplib2 connections.
get(projectId, provisionalUserProject=None, userProject=None)
  Get the email address of this project's Google Cloud Storage service account.
Args:
  projectId: string, Project ID (required)
  provisionalUserProject: string, The project to be billed for this request if the target bucket is requester-pays bucket.
  userProject: string, The project to be billed for this request.
Returns:
  An object of the form:
    { # A subscription to receive Google PubSub notifications.
  "email_address": "A String", # The ID of the notification.
  "kind": "storage#serviceAccount", # The kind of item this is. For notifications, this is always storage#notification.
}