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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def arch(self):
 """Return a more standard representation of the architecture."""

    if self.machine in ["x86_64", "AMD64", "i686"]:
      # 32 bit binaries running on AMD64 will still have a i386 arch.
      if self.architecture == "32bit":
        return "i386"

      return "amd64"
    elif self.machine == "x86":
      return "i386"

    return self.machine