/// <summary>
/// Acquire the singleton lock. If the lock cannot be acquired within the configured timeout,
/// an exception will be thrown.
/// </summary>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public async Task AcquireAsync(CancellationToken cancellationToken)
{
AcquireStartTime = DateTime.UtcNow;
_lockHandle = await _singletonManager.LockAsync(_lockId, _functionInstanceId, _attribute, cancellationToken);
AcquireEndTime = DateTime.UtcNow;
IsHeld = true;
}
