async fn update_maintenance_window_target(
        &self,
        input: UpdateMaintenanceWindowTargetRequest,
    ) -> Result<UpdateMaintenanceWindowTargetResult, RusotoError<UpdateMaintenanceWindowTargetError>>
    {
        let mut request = self.new_signed_request("POST", "/");
        request.add_header("x-amz-target", "AmazonSSM.UpdateMaintenanceWindowTarget");
        let encoded = serde_json::to_string(&input).unwrap();
        request.set_payload(Some(encoded));

        let response = self
            .sign_and_dispatch(request, UpdateMaintenanceWindowTargetError::from_response)
            .await?;
        let mut response = response;
        let response = response.buffer().await.map_err(RusotoError::HttpDispatch)?;
        proto::json::ResponsePayload::new(&response)
            .deserialize::<UpdateMaintenanceWindowTargetResult, _>()
    }
<p><p>Modifies the target of an existing maintenance window. You can change the following:</p> <ul> <li> <p>Name</p> </li> <li> <p>Description</p> </li> <li> <p>Owner</p> </li> <li> <p>IDs for an ID target</p> </li> <li> <p>Tags for a Tag target</p> </li> <li> <p>From any supported tag type to another. The three supported tag types are ID target, Tag target, and resource group. For more information, see <a>Target</a>.</p> </li> </ul> <note> <p>If a parameter is null, then the corresponding field is not modified.</p> </note></p>
rusoto/services/ssm/src/generated.rs