OpenSearch/rest-api-spec/test/indices.exists/10_basic.yaml

---
"Test indices.exists":
  - do:
      indices.exists:
        index: test_index

  - is_false: ''

  - do:
        indices.create:
          index: test_index

  - do:
      indices.exists:
        index: test_index

  - is_true: ''