@type t() :: %HLS.VariantStream{
  audio: HLS.Playlist.Tag.group_id_t(),
  average_bandwidth: pos_integer() | nil,
  bandwidth: pos_integer() | nil,
  closed_captions: HLS.Playlist.Tag.group_id_t(),
  codecs: [String.t()] | nil,
  frame_rate: float(),
  hdcp_level: :none | :type_0,
  resolution: {pos_integer(), pos_integer()},
  subtitles: HLS.Playlist.Tag.group_id_t(),
  uri: nil | URI.t(),
  video: HLS.Playlist.Tag.group_id_t()
}