object @rsvp_request

attributes :id, :user_id, :canceled, :cancel_all, :created_at

child(:user => :user) {
  attributes :id, :name, :photo_url
}

child(:rsvp_requests_rsvp_slots => :rsvp_requests_rsvp_slots) {
  attributes :id, :chosen

  child(:rsvp_slot => :rsvp_slot) {
    attributes :id, :instrument_id, :proficiency_level, :music_session_id
  }
}