#[unsafe(no_mangle)]pub unsafe extern "C" fn wasmtime_externref_clone(
    externref: Option<&wasmtime_externref_t>,
    out: &mut MaybeUninit<wasmtime_externref_t>,
)#[unsafe(no_mangle)]pub unsafe extern "C" fn wasmtime_externref_clone(
    externref: Option<&wasmtime_externref_t>,
    out: &mut MaybeUninit<wasmtime_externref_t>,
)