def str.b.cp
import bend-kit-json@0.7.0.0/json.bend as Jsonimport Base
393def str.b.cp(+start: U32, key: Bool, stack: List<&1, Open>, +i: U32, r: Array<U32> & Cp) -> Array<U32> & Sb:
394 (a, Cp{+c, +n}) = r
395 (a, Bool.pick(Sb, U32.is_eq(n, 0), BFail{}, BStr{(i + n : U32), start, key, stack}))