'Register extensions with this instance of Markdown.
Keyword arguments:
* extensions: A list of extensions, which can either
be strings or objects.  See the docstring on Markdown.
* configs: A dictionary mapping module names to config options.'

def registerExtensions(self, extensions, configs):

    for ext in extensions:
        if isinstance(ext, util.string_type):
            ext = self.build_extension(ext, configs.get(ext, {}))
        if isinstance(ext, Extension):
            ext.extendMarkdown(self, globals())
            logger.debug((u'Successfully    loaded    extension    "%s.%s".' % (ext.__class__.__module__, ext.__class__.__name__)))
        elif (ext is not None):
            raise TypeError((u'Extension    "%s.%s"    must    be    of    type:    "markdown.Extension"' % (ext.__class__.__module__, ext.__class__.__name__)))
    return self
