#The Nerv utility functions# Part of the [Nerv](../README.md) toolkit. ##Methods## * __string = nerv.setmetatable(table self, string tname)__ A registered function, the original function is `luaT_lua_setmetatable`. It assigns the metatable registered in __luaT__ by the name *tname* to the table *self*. And return *tname* to user.