oas 0.2.1

openapi: 3.0.1
info:
  title: API
  version: 1.0.0
paths:
  /:
    get:
      deprecated: 'true'
      parameters:
        - name: test
          in: query
          deprecated: true
          schema:
            type: string
            deprecated: true
      responses:
        '200':
          description: OK