code: def build_fault(cls, e, tb, include_traceback=False):
      
      if hasattr(cls, '_amf_code'):
          code = cls._amf_code
      else:
          code = cls.__name__
  
      details = None
  
      if include_traceback:
          details = traceback.format_exception(cls, e, tb)
  
      return remoting.ErrorFault(code=code, description=unicode(e), details=details)
docs: Builds a L{ErrorFault<pyamf.remoting.ErrorFault>} object based on the last
      exception raised.
  
      If include_traceback is C{False} then the traceback will not be added to
      the L{remoting.ErrorFault}.