Format.last_of: def of bend-lint-rules@0.2.0.0
Import: import bend-lint-rules@0.2.0.0/layout/format.bend as Format
Lines 1140-1145 of bend-lint-rules@0.2.0.0/layout/format.bend: https://jend.leeeet.dev/read.txt?path=bend-lint-rules@0.2.0.0/layout/format.bend&start_line=1140&end_line=1145

import Base

def last_of(xs: List<&2, Tree>, at: Maybe<&2, Tree>) -> Maybe<&2, Tree>:
  match xs:
    case Nil{}:
      at
    case Con{x, rest}:
      last_of(rest, Some{x})

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=bend-lint-rules@0.2.0.0/layout/format.bend&name=Tree