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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 _Decode(self, codec_name, data):
 """Decode data with the given codec name."""

    try:
      return data.decode(codec_name, "replace")
    except LookupError:
      raise RuntimeError("Codec could not be found.")
    except AssertionError:
      raise RuntimeError("Codec failed to decode")