code: def label( self, node ):
          
          result = []
          if node.get('type'):
              result.append( node['type'] )
          if node.get('name' ):
              result.append( node['name'] )
          elif node.get('value') is not None:
              result.append( unicode(node['value'])[:32])
          if 'module' in node and not node['module'] in result:
              result.append( ' in %s'%( node['module'] ))
          if node.get( 'size' ):
              result.append( '%s'%( mb( node['size'] )))
          if node.get( 'totsize' ):
              result.append( '(%s)'%( mb( node['totsize'] )))
          parent_count = len( node.get('parents',()))
          if parent_count > 1:
              result.append( '/%s refs'%( parent_count ))
          return " ".join(result)
docs: Return textual description of this node