  elif backend == "nvidia":
      from .nvidia import NvidiaStats as GPUStats  # noqa
  elif backend == "amd":
      from .amd import AMDStats as GPUStats, setup_plaidml  # noqa
  elif backend == "apple":
      from .apple_silicon import AppleSiliconStats as GPUStats  # noqa
  elif backend == "cpu":
      from .cpu import CPUStats as GPUStats  # noqa
 
</s> remove             backend = "apple"
 </s> add             backend = "apple_silicon" </s> remove     backend: ["amd", "cpu", "nvidia", "apple"]
 </s> add     backend: ["amd", "cpu", "nvidia", "apple_silicon"] </s> remove             selection = input("1: AMD, 2: CPU, 3: NVIDIA, 4: Apple: ")
 </s> add             selection = input("1: AMD, 2: CPU, 3: NVIDIA, 4: Apple Silicon: ") </s> remove         self._backends = {"1": "amd", "2": "cpu", "3": "nvidia", "4": "apple"}
 </s> add         self._backends = {"1": "amd", "2": "cpu", "3": "nvidia", "4": "apple_silicon"}
elif backend == "apple_silicon":
  elif backend == "nvidia":
      from .nvidia import NvidiaStats as GPUStats  # noqa
  elif backend == "amd":
      from .amd import AMDStats as GPUStats, setup_plaidml  # noqa
elif backend == "apple_silicon":
      from .apple_silicon import AppleSiliconStats as GPUStats  # noqa
  elif backend == "cpu":
      from .cpu import CPUStats as GPUStats  # noqa
keep keep keep keep replace keep keep keep
 Rename Apple Silicon backend to apple_silicon 
lib/gpu_stats/__init__.py