Use listSignalCatalogNodes with an AWS SDK

    /**
     * Asynchronously retrieves a list of all nodes in the specified signal catalog.
     *
     * @param signalCatalogName the name of the signal catalog to retrieve nodes for
     * @return a {@link CompletableFuture} that, when completed, contains a {@link List} of {@link Node} objects
     * representing all the nodes in the specified signal catalog
     */
    public CompletableFuture<List<Node>> listSignalCatalogNodeAsync(String signalCatalogName) {
        ListSignalCatalogNodesRequest request = ListSignalCatalogNodesRequest.builder()
                .name(signalCatalogName)
                .build();

        List<Node> allNodes = new ArrayList<>();

        return getAsyncClient().listSignalCatalogNodesPaginator(request)
                .subscribe(response -> allNodes.addAll(response.nodes()))
                .thenApply(v -> allNodes);
    }

/**
 * Lists the signal catalog nodes asynchronously.
 *
 * @param signalCatalogName the name of the signal catalog
 * @return a CompletableFuture that, when completed, contains a list of nodes in the specified signal catalog
 * @throws CompletionException if an exception occurs during the asynchronous operation
 */
suspend fun listSignalCatalogNode(signalCatalogName: String): List<Node>? {
    val request = ListSignalCatalogNodesRequest {
        name = signalCatalogName
    }

    IotFleetWiseClient.fromEnvironment { region = "us-east-1" }.use { fleetwiseClient ->
        val response = fleetwiseClient.listSignalCatalogNodes(request)
        return response.nodes
    }
}