Changes to Get batch status and results

the request_counts response's property type changed from integer to object for status 200

added the new CANCELLED enum value to the request_status/additionalProperties/status response property for the response status 200

added the new COMPLETED enum value to the request_status/additionalProperties/status response property for the response status 200

added the new FAILED enum value to the request_status/additionalProperties/status response property for the response status 200

added the new QUEUED enum value to the request_status/additionalProperties/status response property for the response status 200

added the new RUNNING enum value to the request_status/additionalProperties/status response property for the response status 200

added the non-success response with the status 503

added the required property endpoint to the response with the 200 status

added the required property error to the response with the 200 status

added the required property object to the response with the 200 status

added the required property request_counts/completed to the response with the 200 status

added the required property request_counts/failed to the response with the 200 status

added the required property request_counts/total to the response with the 200 status

added the required property results to the response with the 200 status

added the required property status to the response with the 200 status