456         assert isinstance(self._stream, HTMLStream)

   456         assert isinstance(self._stream, HTMLStream)

   457         self._stream.doctype = self.doctype

   457         self._stream.doctype = self.doctype

   458         if not xmldecl:

   458         if not xmldecl:

   459             self._stream.xmldecl = u''

   459             self._stream.xmldecl = u''

   460 

   460 

   461 # concrete component base classes #############################################

   464 # concrete component base classes #############################################

   462 

   465 

   463 class ReloadableMixIn(object):

   466 class ReloadableMixIn(object):

   464     """simple mixin for reloadable parts of UI"""

   467     """simple mixin for reloadable parts of UI"""

   465     

   468