@type input() :: %{
  :url => String.t(),
  :start => non_neg_integer(),
  :end => non_neg_integer(),
  optional(:start_line) => pos_integer() | nil,
  optional(:start_column) => pos_integer() | nil,
  optional(:end_line) => pos_integer() | nil,
  optional(:end_column) => pos_integer() | nil
}

@type t() :: %Vize.CSS.URL{
  location: Vize.SourceRange.t(),
  range: Vize.Range.t(),
  url: String.t()
}