expand

In std/graph.

fn expand(x: Option<Doc>, depth: Int = 1, *, direction: String = "both") : Graph
fn expand(x: Graph, depth: Int = 1, *, direction: String = "both") : Graph
fn expand(x: Doc, depth: Int = 1, *, direction: String = "both") : Graph
fn expand(xs: Collection<Doc>, depth: Int = 1, *, direction: String = "both") : Graph
fn expand(xs: Collection<Hit<Card>>, depth: Int = 1, *, direction: String = "both") : Graph

The graph reached from x by following links depth steps, 1 unless given, in direction: "uplinks", "downlinks" or "both", the default. A depth of 0 is a type error when it is a literal and an evaluation failure when it is computed: Graph(xs) is the graph with no traversal. It needs a vault.