text: """
  Dumps the content of an Hydra API documentation.
  """
  
  import logging
  import sys
  logging.basicConfig(level=logging.WARNING)
  
  import hydra
  
  URL = 'http://www.markus-lanthaler.com/hydra/event-api/'
  if len(sys.argv) > 1:
      URL = sys.argv[1]
  
  service = hydra.Resource.from_iri(URL)
  #print service.graph.serialize(format="n3") + "\n--------\n"
  
  apidoc = service.api_documentation
  assert apidoc is not None
  
  print "SERVICE:", URL
  print "API DOC:", apidoc.identifier.n3()
  if apidoc.title:
      print "  title:", apidoc.title
  print
  
  for cls in apidoc.supported_classes:
      print "SUPPORTED CLASS: ", cls.identifier
      for pr in cls.supported_properties:
          print "  SUPPORTED PROPERTY:", pr.identifier
          print "    property:", pr.property.identifier
          if pr.title:
              print "    title:", pr.title
          print "    required:", pr.required
          print "    readable:", pr.readable
          print "    writeable:", pr.writeable
          print "    readonly:", pr.readonly
          print "    writeonly:", pr.writeonly
          for op in pr.property.supported_operations:
              print "    SUPPORTED OPERATION:", op.identifier.n3()
              if op.title:
                  print "      title:", op.title
              print "      method:", op.method
              if op.expected_class:
                  print "      expects:", op.expected_class.identifier
              if op.returned_class:
                  print "      returns:", op.returned_class.identifier
      for op in cls.supported_operations:
          print "  SUPPORTED OPERATION: ", op.identifier.n3()
          if op.title:
              print "    title:", op.title
          print "    types: ", ",".join(i.n3() for i in op.types)
          print "    method:", op.method
          if op.expected_class:
              print "    expects:", op.expected_class.identifier
          if op.returned_class:
              print "    returns:", op.returned_class.identifier
      print
  
  