Fix up a few apis

api/JoinPermanentChannel.lua

@@ -1,10 +1,10 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
 ---@param name string 
----@param password string 
----@param chatFrameIndex number 
----@param enableVoice boolean 
 ---@return number zoneChannel 
 ---@return string channelName 
 ---Joins a channel, saving associated chat window settings
+---@overload fun(name: string, password: string)
+---@overload fun(name: string, password: string, chatFrameIndex: number)
+---@overload fun(name: string, password: string, chatFrameIndex: number, enableVoice: boolean)
 function JoinPermanentChannel(name, password, chatFrameIndex, enableVoice) end

api/SendChatMessage.lua

@@ -17,6 +17,6 @@
 ---@param text string 
 ---@param chatType channel 
 ---Sends a chat message
----@overload fun(text: string, chatType: channel, languageIndex: number)
----@overload fun(text: string, chatType: channel, languageIndex: number, channel: string)
+---@overload fun(text: string, chatType: channel, languageIndex: number|nil)
+---@overload fun(text: string, chatType: channel, languageIndex: number|nil, channel: string)
 function SendChatMessage(text, chatType, languageIndex, channel) end

api/UnitCanAttack.lua

@@ -2,6 +2,6 @@
 
 ---@param unitA string
 ---@param unitB string
----@return number|nil canAttack 1 or nil
+---@return boolean canAttack
 ---Returns whether one unit can attack another
 function UnitCanAttack(unitA, unitB) end

api/date.lua

@@ -1,7 +1,7 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
 ---@param format string 
----@param time number 
 ---@return string or table dateValue 
 ---Returns a formatted date/time string for a date (or the current date). Alias to the standard library function os.date.
+---@overload fun(format: string, time: number)
 function date(format, time) end

api/tContains.lua

@@ -1,4 +1,7 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
 
-function tContains() end
+---@param table table<any, any>
+---@param value any
+---@return number|nil 1 or nil
+function tContains(table, value) end