Empty.opener: def of bolt@1.27.0.0
Import: import bolt@1.27.0.0/src/rules/suspicious/empty.bend as Empty
Lines 55-64 of bolt@1.27.0.0/src/rules/suspicious/empty.bend: https://jend.leeeet.dev/read.txt?path=bolt@1.27.0.0/src/rules/suspicious/empty.bend&start_line=55&end_line=64

import Base
import bolt@1.27.0.0/src/syntax/lex.bend as Lex

# a bracket that opens a group, or a comma inside one: what may stand right
# before a test
def opener(kk: Lex.TokKind) -> Bool:
  match kk:
    case Lex.TOpen{}:
      True{}
    case Lex.TComma{}:
      True{}
    case other:
      False{}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/syntax/lex.bend&name=TokKind