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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 get(self, CachableItem):
 """Returns current ICachedItem for ICachableItem or None if not cached"""

        cached_item = self.mapper.get(CachableItem)
        r = self.request('get',
            self.url+"storage/collections/data/"+self.collname+'/'+cached_item.getId(),
            data={'output_mode': 'json'})
        if r.ok:
            # we need to update the object with the values found in the cache area
            data = r.json()
            for name in self.mapper.mapper:
                setattr(cached_item, name, data[name])
            return cached_item
        return None