async fn add_tags(
        &self,
        input: AddTagsInput,
    ) -> Result<AddTagsOutput, RusotoError<AddTagsError>> {
        let mut request = SignedRequest::new("POST", "elasticloadbalancing", &self.region, "/");
        let params = self.new_params("AddTags");
        let mut params = params;
        AddTagsInputSerializer::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, AddTagsError::from_response)
            .await?;

        let result = AddTagsOutput::default();

        drop(response); // parse non-payload
        Ok(result)
    }
<p>Adds the specified tags to the specified load balancer. Each load balancer can have a maximum of 10 tags.</p> <p>Each tag consists of a key and an optional value. If a tag with the same key is already associated with the load balancer, <code>AddTags</code> updates its value.</p> <p>For more information, see <a href="https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/add-remove-tags.html">Tag Your Classic Load Balancer</a> in the <i>Classic Load Balancers Guide</i>.</p>
rusoto/services/elb/src/generated.rs