/:
  get:
    summary: Root method
    tags:
      - /
    security: []
    responses:
      200:
        description: Server is working
        content:
          application/json:
            schema:
              properties:
                message:
                  type: string
                  example: 'API server up and running!'
      500:
        $ref: 'oas.yaml#/components/responses/500'