Merge branch 'demo' into refactor/nodes-match-functionality

src/pages/VisProgPage/visualProgrammingUI/components/CustomNodeHandles.tsx

@@ -0,0 +1,30 @@
+import {
+  Handle,
+  useNodeConnections,
+  type HandleType,
+  type Position
+} from '@xyflow/react';
+
+
+const LimitedConnectionCountHandle = (props: {
+  node_id: string,
+  type: HandleType,
+  position: Position,
+  connection_count: number,
+  id?: string
+}) => {
+  const connections = useNodeConnections({
+    id: props.node_id,
+    handleType: props.type,
+    handleId: props.id,
+  });
+
+  return (
+    <Handle
+      {...props}
+      isConnectable={connections.length < props.connection_count}
+    />
+  );
+};
+
+export default LimitedConnectionCountHandle;