# File lib/fog/openstack/requests/identity/list_tenants.rb, line 5
        def list_tenants(limit = nil, marker = nil)
          params = Hash.new
          params['limit']  = limit  if limit
          params['marker'] = marker if marker

          request(
            :expects => [200, 204],
            :method  => 'GET',
            :path    => "tenants",
            :query   => params
          )
        end