Function wasmtime_tag_new 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn wasmtime_tag_new(
    store: WasmtimeStoreContextMut<'_>,
    tt: &wasm_tagtype_t,
    ret: &mut MaybeUninit<Tag>,
) -> Option<Box<wasmtime_error_t>>

Creates a new host-defined tag with the given type.