text: """
  Serializer plugin interface.
  
  This module is useful for those wanting to write a serializer that can
  plugin to rdflib. If you are wanting to invoke a serializer you likely
  want to do so through the Graph class serialize method.
  
  TODO: info for how to write a serializer that can plugin to rdflib. See also rdflib.plugin
  
  """
  
  from rdflib.term import URIRef
  
  __all__ = ['Serializer']
  
  class Serializer(object):
  
      def __init__(self, store):
          self.store = store
          self.encoding = "UTF-8"
          self.base = None
  
      def serialize(self, stream, base=None, encoding=None, **args):
          """Abstract method"""
  
      def relativize(self, uri):
          base = self.base
          if base is not None and uri.startswith(base):
              uri = URIRef(uri.replace(base, "", 1))
          return uri
  
  