diff --git a/thunder/transforms/autocast.py b/thunder/transforms/autocast.py
index b72429aed..0d860cabc 100644
--- a/thunder/transforms/autocast.py
+++ b/thunder/transforms/autocast.py
@@ -8,7 +8,7 @@
 from thunder.core.proxies import TensorProxy
 from thunder.core.symbol import BoundSymbolInterface, Symbol
 from thunder.core.proxies import TensorProxy
-from thunder.core.trace import TraceCtx,tracectx
+from thunder.core.trace import TraceCtx, tracectx
 from thunder.core.trace_interpreter import TraceSubstitutionProcessor, trace_interpreter_skip_list
 from thunder.core.transforms import construct_trace, eval_trace, Transform
 from thunder.clang import (
@@ -317,18 +317,19 @@ def is_cpu_tensor(p):
 
     return None
 
+
 class AutocastTransform(Transform):
     """Transform that applies automatic mixed precision (autocast) to eligible operations."""
-    
+
     def __init__(self, dtype: dtypes.dtype):
         """Initialize the autocast transform.
-        
+
         Args:
             dtype: The target dtype to cast eligible operations to (float16 or bfloat16)
         """
         if not isinstance(dtype, dtypes.dtype):
             raise ValueError(f"`dtype` is expected to be `thunder.dtype.dtype` but {type(dtype)}")
-        
+
         if dtype not in _allowed_downcast_types:
             raise ValueError(
                 f"autocast: `dtype` is expected to be either `thunder.float16` or `thunder.bfloat16`, but {dtype}"
@@ -336,19 +337,15 @@ def __init__(self, dtype: dtypes.dtype):
         self.dtype = dtype
 
     def transform_traces_pre_prologue(
-        self,
-        prologue_trace: TraceCtx,
-        computation_trace: TraceCtx, 
-        epilogue_trace: TraceCtx | None,
-        **kwargs
+        self, prologue_trace: TraceCtx, computation_trace: TraceCtx, epilogue_trace: TraceCtx | None, **kwargs
     ) -> tuple[TraceCtx, TraceCtx, TraceCtx | None]:
         """Transform the computation trace to apply autocast rules."""
-        
+
         class AutocastProcessor(TraceSubstitutionProcessor):
             def __init__(self, trace, dtype, *args, **kwargs):
                 super().__init__(trace, *args, **kwargs)
                 self.dtype = dtype
-                
+
             def process_bsym(self, bsym):
                 # Skip special symbols that shouldn't be processed
                 if bsym.sym.id in trace_interpreter_skip_list:
@@ -357,24 +354,24 @@ def process_bsym(self, bsym):
 
                 # Check if symbol has an autocast implementation
                 autocast_impl = _maybe_get_autocast_rule_for_symbol(bsym.sym)
-                
+
                 if autocast_impl is not None:
                     # Read the arguments with potential autocast conversion
                     args = tree_map(self.read, bsym.args)
                     kwargs = tree_map(self.read, bsym.kwargs)
-                    
+
                     # Apply the autocast implementation
                     with disable_autocast():
                         result = autocast_impl(*args, **kwargs, dtype=self.dtype)
-                    
+
                     self.set_result(result)
                 else:
                     # No autocast rule, process normally
-                    args = tree_map(self.read, bsym.args) 
+                    args = tree_map(self.read, bsym.args)
                     kwargs = tree_map(self.read, bsym.kwargs)
                     result = bsym.sym(*args, **kwargs)
                     self.set_result(result)
-                    
+
                     # Add the bound symbol to new trace
                     new_bsym = bsym.from_bsym()
                     new_bsym.args = args
@@ -384,21 +381,21 @@ def process_bsym(self, bsym):
         # Process the computation trace
         if computation_trace is not None:
             processor = AutocastProcessor(computation_trace, self.dtype)
-            
+
             # Get the actual args and kwargs from the kwargs dict
-            args = kwargs.get('args', ())
-            kw = kwargs.get('kwargs', {})
-            
+            args = kwargs.get("args", ())
+            kw = kwargs.get("kwargs", {})
+
             with tracectx(processor.new_trace):
                 # Initialize the processor's environment with input arguments
                 for trace_arg, arg in zip(computation_trace.args, args):
                     processor.env[trace_arg.name] = arg
-                
+
                 # Initialize kwargs if any
                 for trace_kwarg, kwarg in zip(computation_trace.kwargs.values(), kw.values()):
                     processor.env[trace_kwarg.name] = kwarg
-                
+
                 new_trace, _ = processor()
                 computation_trace = new_trace
 
-        return prologue_trace, computation_trace, epilogue_trace
\ No newline at end of file
+        return prologue_trace, computation_trace, epilogue_trace