[]
Inserts the specified items at the specified startingIndex in the collection.
public override Task<int> InsertRangeAsync(int index, IEnumerable<S> items, CancellationToken cancellationToken = default)
| Type | Name | Description |
|---|---|---|
| int | index | |
| IEnumerable<S> | items | The items to be inserted. |
| CancellationToken | cancellationToken | The cancellation token. |
| Type | Description |
|---|---|
| Task<int> |