declare namespace C_SpellBook {
  /**
   * Needs summary
   * @see https://wow.gamepedia.com/API_C_SpellBook.ContainsAnyDisenchantSpell
   * @since 8.2.0 (2019-06-25)
   */
  function ContainsAnyDisenchantSpell(): boolean;

  /**
   * Needs summary
   * @param skillLineId
   * @see https://wow.gamepedia.com/API_C_SpellBook.GetSkillLineIndexByID
   * @since 9.0.1 (2020-10-13)
   */
  function GetSkillLineIndexByID(skillLineId: number): number | undefined;

  /**
   * Needs summary
   * @param spellId
   * @see https://wow.gamepedia.com/API_C_SpellBook.IsSpellDisabled
   * @since 8.2.5 (2019-09-24)
   */
  function IsSpellDisabled(spellId: number): boolean;
}