Reference.Typetype t = [ | `Resolved of Resolved.Type.t| `Root of string * [ `TType | `TClass | `TClassType | `TUnknown ]| `Dot of LabelParent.t * string| `Class of Signature.t * Names.ClassName.t| `ClassType of Signature.t * Names.ClassTypeName.t| `Type of Signature.t * Names.TypeName.t ]