actions {
  create_channel {
    channel_actions {}
  }
}
actions {
  create_call {
    method {
    value:
      "contenttype"
    }
  }
}
actions {
  queue_batch {
    operations {
      send_initial_metadata {
        metadata {
          key {
          value:
            "content-type"
          }
        }
        metadata {
          key {
          value:
            "content-type"
          }
        }
      }
    }
  }
}
