def process_request(self, request):
        if request.META['CONTENT_TYPE'].lower() in 'application/json':
            request.DATA = QueryDict('', mutable=True)
            request.DATA.update(simplejson.loads(request.raw_post_data))
            return request
        
        return super(JSONMixin, self).process_request(request)
dataset/ETHPy150Open cootetom/ClassBasedGenericAPI/ClassBasedGenericAPI/mixins.py/JSONMixin.process_request/swapped operands of `in`