:param device: The identifier for the target device.
:type device: intptr_t
:param last_seen_time_stamp: Return only samples with timestamp greater than last_seen_time_stamp.
:type last_seen_time_stamp: unsigned long long
:returns:
- unsigned int: Pointer to caller-supplied array size, and returns number of processes running on vGPU instances.
- nvmlVgpuProcessUtilizationSample_t: Pointer to caller-supplied buffer in which vGPU sub process utilization samples are returned.
:rtype: A 2-tuple containing
.. seealso:: `nvmlDeviceGetVgpuProcessUtilization`