AddGroceryListItem

AddGroceryListItem: (
id: GroceryListId,
item: { name: ItemName; quantity: ItemQuantity },
) => Promise<GroceryList>

Type declaration

- (
  id: GroceryListId,
  item: { name: ItemName; quantity: ItemQuantity },
  ): Promise<GroceryList>
- Parameters
  - ```
  id: GroceryListId
```
- ```
item: { name: ItemName; quantity: ItemQuantity }
```
  Returns Promise<GroceryList>