Nostrum.Api.delete_own_reaction-exclamation-mark

You're seeing just the function delete_own_reaction-exclamation-mark, go back to Nostrum.Api module for more information.

delete_own_reaction!(channel_id, message_id, emoji)

delete_own_reaction!(
  Nostrum.Struct.Channel.id(),
  Nostrum.Struct.Message.id(),
  emoji()
) :: no_return() | {:ok}