@type t() :: %RustQ.Syn.Struct{
  docs: [String.t()],
  fields: [RustQ.Syn.Field.t()],
  lifetimes: [String.t()],
  name: String.t(),
  source_line: pos_integer() | nil,
  source_path: Path.t() | nil,
  type_parameters: [String.t()],
  visibility: :public | :private
}