Strings.opened: def of bolt@1.27.0.0
Import: import bolt@1.27.0.0/src/rules/perf/strings.bend as Strings
Lines 34-40 of bolt@1.27.0.0/src/rules/perf/strings.bend: https://jend.leeeet.dev/read.txt?path=bolt@1.27.0.0/src/rules/perf/strings.bend&start_line=34&end_line=40

import Base

# past its opening char, do the chars end on a closing quote?
def opened(cs: List<&2, Char>) -> Bool:
  match cs:
    case Nil{}:
      False{}
    case Con{_q, rest}:
      closes(rest, False{}, False{})

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/rules/perf/strings.bend&name=closes