code: def verify_repository(self,
              repository,
              master_timeout = 10,
              timeout        = 10,
              body           = '',
              params         = {},
              callback       = None,
              **kwargs
          ):
          
  
          query_params = ('master_timeout', 'timeout',)
  
          params = self._filter_params(query_params, params)
  
          url = self.mk_url(*['_snapshot', repository, '_verify'], **params)
  
          self.client.fetch(
              self.mk_req(url, body=body, method='POST', **kwargs),
              callback = callback
          )
docs: Returns a list of nodes where repository was successfully verified or
          an error message if verification process failed.
          `<http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-snapshots.html>`_
  
          :arg repository: A repository name
          :arg master_timeout: Explicit operation timeout for connection to master
              node
          :arg timeout: Explicit operation timeout