# Declaration Override

    ---
    id: fn1
    ...
    1 + 1

Override:

    ---
    id: fn1
    ...
    1 + 2

# Declaration with Language and Command

    ---
    id: fn4
    lang: python
    cmd: python -E -X utf8
    ...
    1 + 1

# Declaration with Unused Argument

    ---
    id: fn3
    args:
      a: 1
    ...
    1 + 1