content: from enum import Enum, auto
  
  
  class SourceIR(Enum):
      NN = auto()
      ACC = auto()
      ATEN = auto()
      PRIM = auto()
      TORCHTRT_LOWERED = auto()
      UNKNOWN = auto()
  
      def __str__(self) -> str:
          if self == SourceIR.NN:
              return "nn"
          elif self == SourceIR.ACC:
              return "acc"
          elif self == SourceIR.ATEN:
              return "aten"
          elif self == SourceIR.PRIM:
              return "prim"
          elif self == SourceIR.TORCHTRT_LOWERED:
              return "torchtrt_lowered"
          else:
              return "unknown_ir"
  