def bstr.valid
import bend-kit-cbor@0.3.0.0/cbor.bend as Cborimport Base
515def bstr.valid(text: Bool, a: Array<U32>, +i: U32, +end: U32) -> Array<U32> & Bool:
516 match text:
517 case True{}:
518 utf8.check(a, i, end)
519 case False{}:
520 (a, True{})