text: from shexer.io.graph.yielder.nt_triples_yielder import NtTriplesYielder
  from shexer.io.graph.yielder.multifile_base_triples_yielder import MultifileBaseTripleYielder
  
  
  class MultiNtTriplesYielder(MultifileBaseTripleYielder):
  
      def __init__(self, list_of_files, allow_untyped_numbers=False):
          super(MultiNtTriplesYielder, self).__init__(list_of_files=list_of_files,
                                                      allow_untyped_numbers=allow_untyped_numbers)
  
      def _constructor_file_yielder(self, a_source_file, parse_namespaces=False):
          return NtTriplesYielder(source_file=a_source_file,
                                  allow_untyped_numbers=self._allow_untyped_numbers)
  