Editing WoW:API UnitCanAttack

{{wowapi}} __NOTOC__
Returns 1 if the first unit can attack the second, nil otherwise.

 canAttack = UnitCanAttack(attacker, attacked);

==Parameters==
===Arguments===
:;attacker : [[UnitId]] - the unit that would initiate the attack (e.g., "player" or "target")
:;attacked : [[UnitId]] - the unit that would be attacked (e.g., "player" or "target")
===Returns===
:;canAttack : Bool - 1 if the ''attacker'' can attack the ''attacked'', nil otherwise.

==Example==
 if ( UnitCanAttack("player", "target") ) then
  DEFAULT_CHAT_FRAME:AddMessage("You can attack " .. UnitName("target") .. ".");
 end

===Result===
If the player can attack their target, a message stating so is displayed in the default chat frame.