/// <summary>
/// Import data into a DocumentDB collection using a "Bulk Import" stored procedure.
/// </summary>
/// <param name="collection">The collection to run queries against.</param>
/// <param name="sourceDirectory">The source directory to read files from.</param>
/// <returns></returns>
private static async Task ImportData(DocumentCollection collection, string sourceDirectory)
{
await DocumentClientHelper.RunBulkImport(client, collection, sourceDirectory);
}