docs: def set_stream(self):
          """ Sets the download streams """
  
          if not self.auth:
              raise AccessError("Please use the remote() method to set rsync authorization or use remote(public=True) for public data")
          elif not self.initial_stream.task:
              raise AccessError("No files to download.")
          else:
              self.stream = self.get_stream()
              self.stream.source = join(self.remote_base, 'sas') if self.remote_base and not self.public else join(self.remote_base, self.release) if self.release else self.remote_base
              self.stream.destination = join(self.base_dir, self.release) if self.public and self.release else self.base_dir
              self.stream.cli.env = {'RSYNC_PASSWORD': self.auth.password} if self.auth.ready() else None
              if self.stream.source and self.stream.destination:
                  for task in self.initial_stream.task:
                      self.set_stream_task(task)
              ntask = len(self.stream.task)
              if self.stream.stream_count > ntask:
                  if self.verbose:
                      print("SDSS_ACCESS> Reducing the number of streams from %r to %r, the number of download tasks." % (self.stream.stream_count, ntask))
                  self.stream.stream_count = ntask
                  self.stream.streamlet = self.stream.streamlet[:ntask]