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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 PythonTypeFromMetricValueType(value_type):
 """Converts MetricMetadata.ValueType enums to corresponding Python types."""

  if value_type == rdf_stats.MetricMetadata.ValueType.INT:
    return int
  elif value_type == rdf_stats.MetricMetadata.ValueType.FLOAT:
    return float
  else:
    raise ValueError("Unknown value type: %s" % value_type)