error: type mismatch: a type common to both type `String?` and type `Int` does not exist
┌─ tests/analysis/array-type-identification/source.wdl:8:43
│
8 │ Array[String?] x = [opt_string, "hi", 1]
│ ---- ^ this is type `Int`
│ │
│ this and all prior elements had a common type `String?`