9    auto& world  = arg->
world();
 
   10    auto& driver = world.
driver();
 
   11    if (
auto str = 
tuple2str(arg); !str.empty()) 
return world.lit_bool(driver.is_loaded(driver.sym(str)));
 
 
 
World & world() const noexcept
 
const Driver & driver() const
 
#define MIM_compile_NORMALIZER_IMPL
 
const Def * normalize_is_loaded(const Def *, const Def *, const Def *arg)
 
std::string tuple2str(const Def *)