Codes.source.at: def of bolt@1.27.0.0
Import: import bolt@1.27.0.0/src/codes.bend as Codes
Lines 95-101 of bolt@1.27.0.0/src/codes.bend: https://jend.leeeet.dev/read.txt?path=bolt@1.27.0.0/src/codes.bend&start_line=95&end_line=101

import Base

# `bolt(group:slug)`; `bolt` when the slug is not a rule
def source.at(mm: Maybe<&2, Entry>) -> String:
  match mm:
    case None{}:
      "bolt"
    case Some{Entry{+s, _id, +grp}}:
      "bolt(" ++ grp ++ ":" ++ s ++ ")"

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.append
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/codes.bend&name=Entry