Add custom class pt2 tutorial #4866

Job	Run time
pytorch_tutorial_build_worker (1, 15, linux.g5.12xlarge.nvidia.gpu)	14m 28s
pytorch_tutorial_build_worker (3, 15, linux.g5.4xlarge.nvidia.gpu)	21m 6s
pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu)	37m 19s
pytorch_tutorial_build_worker (10, 15, linux.g5.4xlarge.nvidia.gpu)	16m 38s
pytorch_tutorial_build_worker (6, 15, linux.g5.4xlarge.nvidia.gpu)	32m 5s
pytorch_tutorial_build_worker (9, 15, linux.g5.4xlarge.nvidia.gpu)	19m 12s
pytorch_tutorial_build_worker (4, 15, linux.g5.4xlarge.nvidia.gpu)	34m 42s
pytorch_tutorial_build_worker (8, 15, linux.g5.4xlarge.nvidia.gpu)	24m 4s
pytorch_tutorial_build_worker (7, 15, linux.g5.4xlarge.nvidia.gpu)	21m 28s
pytorch_tutorial_build_worker (5, 15, linux.g5.4xlarge.nvidia.gpu)	21m 57s
pytorch_tutorial_build_worker (15, 15, linux.g5.4xlarge.nvidia.gpu)	19m 5s
pytorch_tutorial_build_worker (11, 15, linux.g5.4xlarge.nvidia.gpu)	14m 0s
pytorch_tutorial_build_worker (14, 15, linux.g5.4xlarge.nvidia.gpu)	27m 9s
pytorch_tutorial_build_worker (12, 15, linux.g5.4xlarge.nvidia.gpu)	15m 31s
pytorch_tutorial_build_worker (13, 15, linux.g5.4xlarge.nvidia.gpu)	15m 12s
pytorch_tutorial_build_manager	22m 27s
	5h 56m 23s

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