Add meta

Meta/api/setfenv.lua

@@ -0,0 +1,8 @@
+---@diagnostic disable: missing-return, lowercase-global
+
+---@param f function 
+---@param stackLevel number 
+---@param t table 
+---@return function f 
+---Sets the environment to be used by a function. If the environment has a __environment metatable, this function will error.
+function setfenv(f, stackLevel, t) end