Update

Meta/api/CancelUnitBuff.lua

@@ -1,15 +1,21 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
+---@alias auraFilter
+---| 'RAID' 
+---| 'CANCELABLE' 
+---| 'HARMFUL' 
+---| 'HELPFUL' 
+---| 'NOT_CANCELABLE' 
+---| 'PLAYER' 
+---| 'RAID' 
+
 ---@param unit string 
 ---@param index number 
----@param name string 
----@param rank string 
----@param filter RAID 
----@param CANCELABLE  
----@param HARMFUL  
----@param HELPFUL  
----@param NOT_CANCELABLE  
----@param PLAYER  
----@param RAID  
 ---Cancels a buff on the player. CancelUnitBuff becomes a protected function while under combat lockdown.
-function CancelUnitBuff(unit, index, name, rank, filter, CANCELABLE, HARMFUL, HELPFUL, NOT_CANCELABLE, PLAYER, RAID) end
+---@overload fun(unit: string, index: number)
+---@overload fun(unit: string, index: number, rank: string)
+---@overload fun(unit: string, index: number, rank: string, filter: auraFilter)
+---@overload fun(unit: string, name: string)
+---@overload fun(unit: string, name: string, rank: string)
+---@overload fun(unit: string, name: string, rank: string, filter: auraFilter)
+function CancelUnitBuff(unit, index, name, rank, filter) end

Meta/api/CreateFrame.lua

@@ -1,9 +1,7 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
----@param frameType string 
----@param name string 
----@param parent table 
----@param template string 
----@return table frame 
----Creates a new Frame object
-function CreateFrame(frameType, name, parent, template) end
+---@overload fun(frameType: string): table
+---@overload fun(frameType: string, name: string): table
+---@overload fun(frameType: string, name: string, parent: table): table
+---@overload fun(frameType: string, name: string, parent: table, template: string): table
+function CreateFrame(frameType, name, parent, template) end

Meta/api/DoEmote.lua

@@ -1,7 +1,7 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
 ---@param emote string 
----@param target string 
----@param hold boolean 
 ---Performs a preset emote (with optional target). The list of built-in emote tokens can be found in global variables whose names follow the format "EMOTE"..num.."_TOKEN", where num is a number between 1 and MAXEMOTEINDEX (a variable local to ChatFrame.lua.) For custom emotes (as performed using the /emote or /me commands in the default UI), see SendChatMessage().
+---@overload fun(emote: string, target: string)
+---@overload fun(emote: string, target: string, hold: boolean)
 function DoEmote(emote, target, hold) end

Meta/api/GetItemInfo.lua

@@ -1,8 +1,6 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
----@param itemID number 
----@param itemName string 
----@param itemLink string 
+---@param itemName string
 ---@return string name 
 ---@return string link 
 ---@return number quality 
@@ -15,4 +13,6 @@
 ---@return string texture 
 ---@return number vendorPrice 
 ---Returns information about an item, by name, link or id. Will only return item information if it is directly available in memory. An item is present in memory if:    It has been seen this session, OR   It's present in Cache/enUS/Item-sparse.dba, where enUS is the user's locale  If item information is not readily available, the client will first look on disk in DBFilesClient/Item-sparse.db2. If an item is found there, the client fires the GET_ITEM_INFO_RECEIVED event and keeps the result in memory for further GetItemInfo requests. If an item is not found on disk either, the client will send a server request for it. If the request fails, nothing happens. If the request succeeds, the client stores the item in memory and writes it to Cache/Locale/Item-sparse.dba. The client will never send more than one server request per id per session.
-function GetItemInfo(itemID, itemName, itemLink) end
+---@overload fun(itemID: number): table
+---@overload fun(itemLink: string): table
+function GetItemInfo(itemName) end

Meta/api/GetLootInfo.lua

@@ -1,4 +1,13 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
+---@class LootInfo
+---@field isQuestItem boolean?
+---@field item string Item name
+---@field locked boolean Can loot?
+---@field quality number Item quality
+---@field quantity number Item quantity
+---@field roll boolean
+---@field texture number Texture file ID
 
+---@return LootInfo[]
 function GetLootInfo() end

Meta/api/GetLootSlotInfo.lua

@@ -5,6 +5,6 @@
 ---@return string item 
 ---@return number quantity 
 ---@return number quality 
----@return 1nil locked 
+---@return number? locked (1 if locked, nil if not)
 ---Returns information about an item available as loot
 function GetLootSlotInfo(slot) end

Meta/api/GetSpellCooldown.lua

@@ -1,13 +1,15 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
+---@alias bookType
+---| 'SPELL'
+---| 'PET'
+
 ---@param index number 
----@param bookType spell 
----@param pet  
----@param spell  
----@param name string 
----@param id number 
+---@param bookType bookType
 ---@return number start 
 ---@return number duration 
 ---@return number enable 
 ---Returns cooldown information about a spell in the spellbook
-function GetSpellCooldown(index, bookType, pet, spell, name, id) end
+---@overload fun(name: string)
+---@overload fun(id: number)
+function GetSpellCooldown(index, bookType) end

Meta/api/PromoteToAssistant.lua

@@ -1,7 +1,7 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
 ---@param unit string 
----@param name string 
----@param exactMatch boolean 
 ---Promotes a raid member to raid assistant
+---@overload fun(name: string, exactMatch: boolean)
+---@overload fun(unit: string)
 function PromoteToAssistant(unit, name, exactMatch) end

Meta/api/SendChatMessage.lua

@@ -1,20 +1,22 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
+---@alias channel
+---| 'CHANNEL' channel 
+---| 'DND' text 
+---| 'EMOTE' /e 
+---| 'GUILD' /g 
+---| 'INSTANCE_CHAT' /i 
+---| 'OFFICER' /o 
+---| 'PARTY' /p 
+---| 'RAID' /ra 
+---| 'RAID_WARNING' /rw 
+---| 'SAY' /s 
+---| 'WHISPER' channel 
+---| 'YELL' /y 
+
 ---@param text string 
----@param chatType /y 
----@param CHANNEL channel 
----@param DND text 
----@param EMOTE /e 
----@param GUILD /g 
----@param INSTANCE_CHAT /i 
----@param OFFICER /o 
----@param PARTY /p 
----@param RAID /ra 
----@param RAID_WARNING /rw 
----@param SAY /s 
----@param WHISPER channel 
----@param YELL /y 
----@param languageIndex number 
----@param channel string 
+---@param chatType channel 
 ---Sends a chat message
-function SendChatMessage(text, chatType, CHANNEL, DND, EMOTE, GUILD, INSTANCE_CHAT, OFFICER, PARTY, RAID, RAID_WARNING, SAY, WHISPER, YELL, languageIndex, channel) end
+---@overload fun(text: string, chatType: channel, languageIndex: number)
+---@overload fun(text: string, chatType: channel, languageIndex: number, channel: string)
+function SendChatMessage(text, chatType, languageIndex, channel) end

Meta/api/UnitClass.lua

@@ -1,9 +1,9 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
 ---@param unit string 
----@param name string 
 ---@return string class 
 ---@return string classFileName 
 ---@return number classIndex 
 ---Returns a unit's class. The second return (classFileName) can be used for locale-independent verification of a unit's class, or to look up class-related data in various global tables:    RAID_CLASS_COLORS provides a standard color for each class (as seen in the default who, guild, calendar, and raid UIs)   CLASS_ICON_TCOORDS provides coordinates to locate each class' icon within the "Interface\Glues\CharacterCreate\UI-CharacterCreate-Classes" texture  For non-player units, the first return (class) will be the unit's name; to always get a localized class name regardless of unit type, use UnitClassBase instead.
-function UnitClass(unit, name) end
+---@overload fun(name: string)
+function UnitClass(unit) end

Meta/api/UnitExists.lua

@@ -1,7 +1,7 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
 ---@param unit string 
----@param name string 
----@return 1nil exists 
+---@return boolean exists 
 ---Returns whether a unit exists. A unit "exists" if it can be referenced by the player; e.g. party1 exists if the player is in a party with at least one other member (regardless of whether that member is nearby), target exists if the player has a target, npc exists if the player is currently interacting with an NPC, etc.
+---@overload fun(name: string)
 function UnitExists(unit, name) end

Meta/api/UnitIsGroupLeader.lua

@@ -1,7 +1,7 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
 ---@param unit string 
----@param name string 
----@return bool leader 
+---@return boolean leader 
 ---Returns whether a unit is the raid leader.
+---@overload fun(name: string)
 function UnitIsGroupLeader(unit, name) end

Meta/api/strsplit.lua

@@ -2,7 +2,7 @@
 
 ---@param sep string 
 ---@param text string 
----@param limit number 
+---@param limit number?
 ---@return string ... 
 ---Splits a string based on another seperator string. Also available as string.split (though not provided by the Lua standard library).
 function strsplit(sep, text, limit) end

Meta/api/strtrim.lua

@@ -1,7 +1,7 @@
 ---@diagnostic disable: missing-return, lowercase-global
 
 ---@param str string 
----@param trimChars string 
 ---@return string text 
 ---Trims leading and trailing characters (whitespace by default) from a string. Also available as string.trim (though not provided by the Lua standard library).
+---@overload fun(str: string, trimChars: string)
 function strtrim(str, trimChars) end