OpenAPI3和Swagger：如何从组件参数的一种描述引用到另一种描述？

Question

如何从一个组件的描述中引用另一个？

    comparam01:
      in: query
      name: comparam01
      schema:
        type: string
      description: |
        Any text.
    comparam02:
      in: query
      name: comparam02
      schema:
        # that's working!
        $ref: '#/components/parameters/comparam01/schema'
      description: 
        # Swagger says: Error (should be a string)
        $ref: '#/components/parameters/comparam01/description'