def add_to_cluster(self, name, **attrs):
        """Add attributes to a cluster.
        """
        cluster = self.get_cluster(name=name)
        attrs_ = cluster['cluster']
        attrs_.update(**attrs)
def add_to_cluster ( self , name , ** attrs ) : cluster = self . get_cluster ( name = name ) attrs_ = cluster [ 'cluster' ] attrs_ . update ( ** attrs )
Add attributes to a cluster.