Function isNodeEditorSaveData

Returns a is {
    comments: {
        id: string;
        links: string[];
        text: string;
    }[];
    connections: ConnectionSaveData[];
    editorName: string;
    graphName: string;
    id: undefined | string;
    nodes: NodeSaveData[];
    previewedNodes: string[];
    variables: Record<string, Variable> | Variable[];
}