code: def getMeta(self, uri):
          
  
          action = urlparse(uri).path
  
          mediaKey = self.cacheKey + '_meta_' + action
          mediaKey = mediaKey.replace(' ', '__')
  
          meta = cache.get(mediaKey, None)
  
          # Nothing found -> Retrieve it from the server and cache it
          if not meta:
  
              r = self.doQuery('meta/' + uri)
  
              if r.status_code == 200:  # Get the content if there is not problem. If there is, template will stay to None
                  meta = r.json()
  
              if 'expire' not in r.headers:
                  expire = 5 * 60  # 5 minutes of cache if the server didn't specified anything
              else:
                  expire = int((parser.parse(r.headers['expire']) - datetime.datetime.now(tzutc())).total_seconds())  # Use the server value for cache
  
              if expire > 0:  # Do the server want us to cache ?
                  cache.set(mediaKey, meta, expire)
  
          return meta
docs: Return meta information about an action. Cache the result as specified by the server