foo.yml

openapi: '3.0.3'

paths:
  /example:
    get:
      summary: Example summary
      description: Example description
      operationId: examplePath
      x-codeSamples:
        - lang: 'C'
          label: 'bar'
          source: |
            curl --request POST \
            --url 'https://data.apiexample.com/api/example/batch_query/json?format=json' \
            --header 'content-type: application/octet-stream: ' \
            --data '{}'