Changes to Get Load Balancer statistics

the security scope ScopedApiKey was added to the endpoint's security scheme AccessKey

the security scope ScopedApiKey was added to the endpoint's security scheme bearer

added the new optional query request parameter exactRange

added the non-success response with the status 400

added the non-success response with the status 429

added the optional property Summary/oneOf[#/components/schemas/LoadBalancerStatisticsSummaryModel]/FailoverCapped to the response with the 200 status

added the optional property Summary/oneOf[#/components/schemas/LoadBalancerStatisticsSummaryModel]/HealthyResponsesServed to the response with the 200 status

added the optional property Summary/oneOf[#/components/schemas/LoadBalancerStatisticsSummaryModel]/OriginErrorsServed to the response with the 200 status

endpoint added