B64.utf8.mask: def of cswap-bend-cli@0.1.0.0
Import: import cswap-bend-cli@0.1.0.0/b64.bend as B64
Lines 48-49 of cswap-bend-cli@0.1.0.0/b64.bend: https://jend.leeeet.dev/read.txt?path=cswap-bend-cli@0.1.0.0/b64.bend&start_line=48&end_line=49

import Base

def utf8.mask(+n: U32) -> U32:
  sel(U32.is_eq(n, 0), 255, sel(U32.is_eq(n, 1), 31, sel(U32.is_eq(n, 2), 15, 7)))

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_eq
  https://jend.leeeet.dev/definition.txt?path=cswap-bend-cli@0.1.0.0/b64.bend&name=sel