async fn tag_resource(
        &self,
        input: TagResourceRequest,
    ) -> Result<TagResourceResponse, RusotoError<TagResourceError>> {
        let mut request = self.new_signed_request("POST", "/");
        request.add_header("x-amz-target", "KinesisAnalytics_20150814.TagResource");
        let encoded = serde_json::to_string(&input).unwrap();
        request.set_payload(Some(encoded));

        let response = self
            .sign_and_dispatch(request, TagResourceError::from_response)
            .await?;
        let mut response = response;
        let response = response.buffer().await.map_err(RusotoError::HttpDispatch)?;
        proto::json::ResponsePayload::new(&response).deserialize::<TagResourceResponse, _>()
    }
<p>Adds one or more key-value tags to a Kinesis Analytics application. Note that the maximum number of application tags includes system tags. The maximum number of user-defined application tags is 50. For more information, see <a href="https://docs.aws.amazon.com/kinesisanalytics/latest/dev/how-tagging.html">Using Tagging</a>.</p>
rusoto/services/kinesisanalytics/src/generated.rs