Semantic.opens_brace: def of bolt@1.27.0.0
Import: import bolt@1.27.0.0/src/lsp/semantic.bend as Semantic
Lines 343-349 of bolt@1.27.0.0/src/lsp/semantic.bend: https://jend.leeeet.dev/read.txt?path=bolt@1.27.0.0/src/lsp/semantic.bend&start_line=343&end_line=349

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

# does the token list start with `{`?
def opens_brace(toks: List<&2, Lex.Tok>) -> Bool:
  match toks:
    case Con{Lex.Tok{k, +t, l, c}, rest}:
      String.eq(t, "{")
    case Nil{}:
      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=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.eq
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/syntax/lex.bend&name=Tok