async fn update_scaling_parameters(
        &self,
        input: UpdateScalingParametersRequest,
    ) -> Result<UpdateScalingParametersResponse, RusotoError<UpdateScalingParametersError>> {
        let mut request = SignedRequest::new("POST", "cloudsearch", &self.region, "/");
        let params = self.new_params("UpdateScalingParameters");
        let mut params = params;
        UpdateScalingParametersRequestSerializer::serialize(&mut params, "", &input);
        request.set_payload(Some(serde_urlencoded::to_string(&params).unwrap()));
        request.set_content_type("application/x-www-form-urlencoded".to_owned());

        let response = self
            .sign_and_dispatch(request, UpdateScalingParametersError::from_response)
            .await?;

        let mut response = response;
        let result = xml_util::parse_response(&mut response, |actual_tag_name, stack| {
            xml_util::start_element(actual_tag_name, stack)?;
            let result = UpdateScalingParametersResponseDeserializer::deserialize(
                "UpdateScalingParametersResult",
                stack,
            )?;
            skip_tree(stack);
            xml_util::end_element(actual_tag_name, stack)?;
            Ok(result)
        })
        .await?;

        drop(response); // parse non-payload
        Ok(result)
    }
<p>Configures scaling parameters for a domain. A domain's scaling parameters specify the desired search instance type and replication count. Amazon CloudSearch will still automatically scale your domain based on the volume of data and traffic, but not below the desired instance type and replication count. If the Multi-AZ option is enabled, these values control the resources used per Availability Zone. For more information, see <a href="http://docs.aws.amazon.com/cloudsearch/latest/developerguide/configuring-scaling-options.html" target="_blank">Configuring Scaling Options</a> in the <i>Amazon CloudSearch Developer Guide</i>. </p>
rusoto/services/cloudsearch/src/generated.rs