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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 getViewportValues(self, view=None):
 """Determine the value of the viewport meta-tag """

        values = {
            'width': 'device-width',
            'initial-scale': '1.0',
        }

        return ','.join('%s=%s' % (k, v) for k, v in values.items())