spec:
  _tasks:
  - _fw_name: TemplateWriterTask
    context:
      opt1: 5.0
      opt2: fast method
    output_file: inputs.txt
    template_file: simple_template.txt
  - _fw_name: ScriptTask
    script: wc -w < inputs.txt > words.txt
    use_shell: true
  - _fw_name: FileTransferTask
    files:
    - dest: ~/words.txt
      src: words.txt
    mode: copy
