---@diagnostic disable: missing-return, lowercase-global
---@meta

---@param monthOffset monthOffset
---@param day number
---@param index number
---Selects an event for use only with other CalendarContext functions. The selection state set by this function is used only by other CalendarContext
---functions; other calendar event functions use the selection state set by CalendarOpenEvent, CalendarNewEvent, CalendarNewGuildEvent,
---or CalendarNewGuildAnnouncement (if they use a selection state at all).
---Used in the default UI to implement the calendar's context menu (on right-click).
function CalendarContextSelectEvent(monthOffset, day, index) end