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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 determine_content(request):
 """ Determine request content. :return str: request content type """


        if not request.META.get('CONTENT_LENGTH', None) \
           and not request.META.get('TRANSFER_ENCODING', None):
            return None

        return request.META.get('CONTENT_TYPE', None)