async fn list_attributes(
        &self,
        input: ListAttributesRequest,
    ) -> Result<ListAttributesResponse, RusotoError<ListAttributesError>> {
        let mut request = self.new_signed_request("POST", "/");
        request.add_header(
            "x-amz-target",
            "AmazonEC2ContainerServiceV20141113.ListAttributes",
        );
        let encoded = serde_json::to_string(&input).unwrap();
        request.set_payload(Some(encoded));

        let response = self
            .sign_and_dispatch(request, ListAttributesError::from_response)
            .await?;
        let mut response = response;
        let response = response.buffer().await.map_err(RusotoError::HttpDispatch)?;
        proto::json::ResponsePayload::new(&response).deserialize::<ListAttributesResponse, _>()
    }
<p>Lists the attributes for Amazon ECS resources within a specified target type and cluster. When you specify a target type and cluster, <code>ListAttributes</code> returns a list of attribute objects, one for each attribute on each resource. You can filter the list of results to a single attribute name to only return results that have that name. You can also filter the results by attribute name and value, for example, to see which container instances in a cluster are running a Linux AMI (<code>ecs.os-type=linux</code>). </p>
rusoto/services/ecs/src/generated.rs