Save Hive db in assets folder for future usage

I want to use a pre-populated db.

**Initialization:**

```
Directory directory = await pathProvider.getApplicationDocumentsDirectory();

Hive.init(directory.path);
Hive.registerAdapter(InventoryAdapter());
```
**Add initial data:**

```
addItem(Inventory item) async {
var box = await Hive.openBox('inventory');
box.put('abc', item);

var data = box.get('abc');
print(data.description); //looks good
}
```
**How to Get Database to use in future?**
I want to save this initial database in assets folder and will make it part of the build. How can I get this database?