Interface OutlineItem

interface OutlineItem {
    cellIndex?: number;
    children?: OutlineItem[];
    id: string;
    label: string;
    level?: number;
    line?: number;
    type:
        | "heading"
        | "h1"
        | "h2"
        | "h3"
        | "h4"
        | "h5"
        | "h6"
        | "code"
        | "code-cell"
        | "markdown-cell";
}