If your API returns different responses based on input parameters, user context, or other conditions of the request, you can document multiple response examples with the examples property. This property can be added to any response and has the following schema. 
responses:
  "200":
    description: Successful response
    content:
      application/json:
        schema:
          $ref: "#/components/schemas/YourResponseSchema"
        examples:
          us:
            summary: Response for United States
            value:
              countryCode: "US"
              currencyCode: "USD"
              taxRate: 0.0825
          gb:
            summary: Response for United Kingdom
            value:
              countryCode: "GB"
              currencyCode: "GBP"
              taxRate: 0.20