stream

# File activestorage/lib/active_storage/service/gcs_service.rb, line 175
      def stream(key)
        file = file_for(key, skip_lookup: false)

        chunk_size = 5.megabytes
        offset = 0

        raise ActiveStorage::FileNotFoundError unless file.present?

        while offset < file.size
          yield file.download(range: offset..(offset + chunk_size - 1)).string
          offset += chunk_size
        end
      end