Plan.sources: def of bolt@1.27.0.0
Import: import bolt@1.27.0.0/src/lint/plan.bend as Plan
Lines 156-163 of bolt@1.27.0.0/src/lint/plan.bend: https://jend.leeeet.dev/read.txt?path=bolt@1.27.0.0/src/lint/plan.bend&start_line=156&end_line=163

import Base

# the paths that are source
def sources(ps: List<&2, String>) -> List<&2, String>:
  match ps:
    case Nil{}:
      Nil{}
    case Con{+p, rest}:
      +more = sources(rest)
      Bool.pick(List<&2, String>, is_config(p), more, p <> more)

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.pick
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/lint/plan.bend&name=is_config