async fn list_clusters(
        &self,
        input: ListClustersRequest,
    ) -> Result<ListClustersResult, RusotoError<ListClustersError>> {
        let mut request = self.new_signed_request("POST", "/");
        request.add_header(
            "x-amz-target",
            "AWSIESnowballJobManagementService.ListClusters",
        );
        let encoded = serde_json::to_string(&input).unwrap();
        request.set_payload(Some(encoded));

        let response = self
            .sign_and_dispatch(request, ListClustersError::from_response)
            .await?;
        let mut response = response;
        let response = response.buffer().await.map_err(RusotoError::HttpDispatch)?;
        proto::json::ResponsePayload::new(&response).deserialize::<ListClustersResult, _>()
    }
<p>Returns an array of <code>ClusterListEntry</code> objects of the specified length. Each <code>ClusterListEntry</code> object contains a cluster's state, a cluster's ID, and other important status information.</p>
rusoto/services/snowball/src/generated.rs