
  Syntax error!
  syntax_tests/data/parsing/errors/expressions/labelledArgumentMissingEqual.res:1:16

  1 │ let _ = fn(~foo:1)
  2 │ let _ = fn(~bar:?value)
  3 │ 

  Use `=` to pass a labelled argument. Example: `~label=value`


  Syntax error!
  syntax_tests/data/parsing/errors/expressions/labelledArgumentMissingEqual.res:2:16

  1 │ let _ = fn(~foo:1)
  2 │ let _ = fn(~bar:?value)
  3 │ 

  Optional labelled arguments use `=?`. Example: `~label=?value`

let _ = fn ~foo:1
let _ = fn ?bar:value