---
- name: Single block sequence with anchor
  from: '@perlpunk'
  tags: anchor sequence
  yaml: |
    &sequence
    - a
  tree: |
    +STR
     +DOC
      +SEQ &sequence
       =VAL :a
      -SEQ
     -DOC
    -STR
  json: |
    [
      "a"
    ]
  dump: |
    &sequence
    - a