import { attribute } from "https://deno.land/x/graphviz@v0.2.1/attribute.ts";
const { tooltip } = attribute;
Tooltip annotation attached to the node or edge. If unset, Graphviz will use the object's label if defined. Note that if the label is a record specification or an HTML-like label, the resulting tooltip may be unhelpful. In this case, if tooltips will be generated, the user should set a tooltip attribute explicitly.