code: def create(self, uri, buffer="queue", interval=10):
          
          return self._http_client.put_json("subscriptions/{}".format(self.short_name), {
              "subscription": {
                  "uri": uri,
                  "buffer": buffer,
                  "interval": interval,
              }
          })
docs: Create a subscription with this short name and the provided parameters
  
          For more information on what the parameters required here mean, please
          refer to the `WVA Documentation <http://goo.gl/DRcOQf>`_.
  
          :raises WVAError: If there is a problem creating the new subscription