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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 create(labels=None, **kw):
 """Constructs a new metric value. This acts as an alternate to MetricValue constructor which simplifies specification of labels. Rather than having to create a MetricValue.Labels instance, all that's necessary to specify the required string. Args: labels (dict([string, [string]]):
 **kw: any other valid keyword args valid in the MetricValue constructor Returns :class:`MetricValue`: the created instance """

    if labels is not None:
        kw[u'labels'] = encoding.PyValueToMessage(MetricValue.LabelsValue,
                                                  labels)
    return MetricValue(**kw)