API UnitIsDND

__NOTOC__
Returns true if a unit is DND (Do not disturb).
 isDND = UnitIsDND(unit)
===Arguments===
:;unit:The UnitId to return DND status of.
===Returns===
:;isDND:1 if unit is DND, nil otherwise.
==Example==
If the player is DND, the following script outputs "You are DND" to the default chat window.
 if UnitIsDND("player") then
 DEFAULT_CHAT_FRAME:AddMessage("You are DND");
 end