code: def _localize_inputs_command(self, task_dir, inputs, user_project):
      
      commands = []
      for i in inputs:
        if i.recursive or not i.value:
          continue
  
        source_file_path = i.uri
        local_file_path = task_dir + '/' + _DATA_SUBDIR + '/' + i.docker_path
        dest_file_path = self._get_input_target_path(local_file_path)
  
        commands.append('mkdir -p "%s"' % os.path.dirname(local_file_path))
  
        if i.file_provider in [job_model.P_LOCAL, job_model.P_GCS]:
          # The semantics that we expect here are implemented consistently in
          # "gsutil cp", and are a bit different than "cp" when it comes to
          # wildcard handling, so use it for both local and GCS:
          #
          # - `cp path/* dest/` will error if "path" has subdirectories.
          # - `cp "path/*" "dest/"` will fail (it expects wildcard expansion
          #   to come from shell).
          if user_project:
            command = 'gsutil -u %s -mq cp "%s" "%s"' % (
                user_project, source_file_path, dest_file_path)
          else:
            command = 'gsutil -mq cp "%s" "%s"' % (source_file_path,
                                                   dest_file_path)
          commands.append(command)
  
      return '\n'.join(commands)
docs: Returns a command that will stage inputs.