class Google::Cloud::Storage::Service

def lock_bucket_retention_policy bucket_name, metageneration,

Locks retention policy on a bucket.
# 
def lock_bucket_retention_policy bucket_name, metageneration,
                                 user_project: nil,
                                 options: {}
  execute do
    service.lock_bucket_retention_policy \
      bucket_name, metageneration,
      user_project: user_project(user_project),
      options: options
  end
end