/// <summary>
/// Removes one or more documents from a collection. If no documents match the <paramref name="filter"/>, the collection is not modified.
/// </summary>
/// <param name="filter">
/// A document describing the deletion criteria using <see href="https://docs.mongodb.com/manual/reference/operator/query/">query operators</see>.
/// If not specified, all documents in the collection will be deleted.
/// </param>
/// <returns>
/// An awaitable <see cref="Task{T}"/> representing the remote delete many operation. The result of the task contains the number
/// of deleted documents.
/// </returns>
/// <seealso href="https://docs.mongodb.com/manual/reference/method/db.collection.deleteMany/"/>
public async Task <DeleteResult> DeleteManyAsync(object filter = null)
{
var result = await _handle.DeleteMany(filter?.ToNativeJson());
return(result.GetValue <DeleteResult>());
}
