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

---@param index number
---@param messageGroup string
---Removes a message type from a chat window's list of saved message subscriptions. Used by the default UI's functions ChatFrame_RemoveMessageGroup() and ChatFrame_RemoveAllMessageGroups() which manage the set of message types shown in a displayed ChatFrame.
function RemoveChatWindowMessages(index, messageGroup) end