/// <summary>
/// Update or create a set of contacts, this is the preferred method when creating/updating in bulk.
/// Best performance is with a maximum of 250 contacts.
/// </summary>
/// <typeparam name="T">Implementation of ContactHubSpotModel</typeparam>
/// <param name="contacts">The set of contacts to update/create</param>
public Task BatchAsync(IEnumerable <ContactHubSpotModel> contacts, CancellationToken cancellationToken = default)
{
return(_client.ExecuteBatchAsync(GetRoute <ContactHubSpotModel>("contact", "batch"),
contacts.Select(c => (object)new CreateOrUpdateContactBatchTransportModel(c)), Method.POST, cancellationToken));
}