code: def filtersBM(dataset,host=biomart_host):
      
      stdout_ = sys.stdout #Keep track of the previous value.
      stream = StringIO()
      sys.stdout = stream   
      server = BiomartServer(host)
      d=server.datasets[dataset]
      d.show_filters()
      sys.stdout = stdout_ # restore the previous stdout.
      variable = stream.getvalue() 
      v=variable.replace("{"," ") 
      v=v.replace("}"," ") 
      v=v.replace(": ","\t")
      print(v)
docs: Lists BioMart filters for a specific dataset.
  
      :param dataset: dataset to list filters of.
      :param host: address of the host server, default='http://www.ensembl.org/biomart'
  
      :returns: nothing