async fn untag_resource(
        &self,
        input: UntagResourceInput,
    ) -> Result<UntagResourceOutput, RusotoError<UntagResourceError>> {
        let mut request = SignedRequest::new("POST", "monitoring", &self.region, "/");
        let params = self.new_params("UntagResource");
        let mut params = params;
        UntagResourceInputSerializer::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, UntagResourceError::from_response)
            .await?;

        let result = UntagResourceOutput::default();

        drop(response); // parse non-payload
        Ok(result)
    }
<p>Removes one or more tags from the specified resource.</p>
rusoto/services/cloudwatch/src/generated.rs