def lit.if
import bend-net-json@0.3.0.0/json.bend as Jsonimport Base
120def lit.if(+s: String, v: Val, n: Nat, ok: Bool) -> Maybe<&2, Next>:
121 match ok:
122 case False{}:
123 None{}
124 case True{}:
125 Some{Next{v, String.drop(s, n)}}