def tail
import bend-collections-laws-math@1.0.0.0/spec/math/random/chacha8rand.bend as Chacha8randimport Base
import bend-collections-laws-math@1.0.0.0/src/math/u64.bend as W
187def tail(xs: List<&2, W.U64>) -> List<&2, W.U64>:
188 match xs:
189 case Nil{}:
190 []
191 case Con{x, rest}:
192 rest