babel/packages/babel-parser/test/fixtures/experimental/pipeline-operator/fsharp-proposal-invalid-topic/options.json

{
  "plugins": [["pipelineOperator", { "proposal": "fsharp" }]],
  "throws": "Topic reference is used, but the pipelineOperator plugin was not passed a \"proposal\": \"hack\" or \"smart\" option. (1:5)"
}