public Map<String, String> getResponseParameters() {
        return responseParameters;
    }
Gets response parameters.

@return Returns the map of parameter expressions to how they modify the response.
@see <a href="https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-swagger-extensions-integration-responseParameters.html">Response parameters</a>
smithy-aws-apigateway-traits/src/main/java/software/amazon/smithy/aws/apigateway/traits/IntegrationResponse.java