Codec.dup: def of bend-kit-postgres@0.3.0.0
Import: import bend-kit-postgres@0.3.0.0/codec.bend as Codec
Lines 372-377 of bend-kit-postgres@0.3.0.0/codec.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-postgres@0.3.0.0/codec.bend&start_line=372&end_line=377

import Base

def dup(xs: List<&1, U32>) -> List<&2, U32>:
  match xs:
    case Nil{}:
      Nil{}
    case Con{+h, t}:
      Con{h, dup(t)}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32