def step
import ezx@1.11.0.0/src/pkg/pkg.bend as Pkgimport Base
1015# the walk as one step that does not recurse
1016def step(+tree: Tree, eb: String, st: State) -> State:
1017 State{seen, out, stop, queue} = st
1018 step.pop(tree, eb, seen, out, stop, queue)