ran ruff formatter locally

Author: nicogorlo

nerfstudio/field_components/activations.py

@@ -29,13 +29,13 @@ class _TruncExp(Function):
     # Implementation from torch-ngp:
     # https://github.com/ashawkey/torch-ngp/blob/93b08a0d4ec1cc6e69d85df7f0acdfb99603b628/activation.py
     @staticmethod
-    @custom_fwd(cast_inputs=torch.float32, device_type='cuda')
+    @custom_fwd(cast_inputs=torch.float32, device_type="cuda")
     def forward(ctx, x):
         ctx.save_for_backward(x)
         return torch.exp(x)
 
     @staticmethod
-    @custom_bwd(device_type='cuda')
+    @custom_bwd(device_type="cuda")
     def backward(ctx, g):
         x = ctx.saved_tensors[0]
         return g * torch.exp(x.clamp(-15, 15))