WeChat.CustomMessage.send_music

You're seeing just the function send_music, go back to WeChat.CustomMessage module for more information.
Link to this function

send_music(client, openid, map)

Specs

send_music(WeChat.client(), WeChat.openid(), map()) :: WeChat.response()

客服消息接口 - 发送音乐消息 - 官方文档

Example

WeChat.CustomMessage.send_music(client, openid, {
  title:          "MUSIC_TITLE",
  description:    "MUSIC_DESCRIPTION",
  musicurl:       "MUSIC_URL",
  hqmusicurl:     "HQ_MUSIC_URL",
  thumb_media_id: "THUMB_MEDIA_ID"
})