@redocly/openapi-core/src/__tests__/fixtures/refs/openapi-with-url-refs.yaml

See https://github.com/Redocly/redocly-cli

openapi: 3.0.0
paths:
  /pet:
    parameters:
      - $ref: '#/components/parameters/path-param'
    put:
      parameters:
        - $ref: 'https://someexternal.schema'
        - $ref: ./param-b.yaml
        - name: test
    get:
      parameters:
        - $ref: 'http://someexternal.schema'
        - $ref: ./param-c.yaml
components:
  parameters:
    path-param:
      name: path_param