public extension PureYAML.Streaming {
    /// A scanner token: a kind plus the source span it covers. Produced by
    /// ``Scanner/next()`` one at a time, in the same order ``PureYAML/parse(_:)``
    /// would see them internally.
    struct Token: Equatable, Sendable {
        public var kind: Kind
        public var range: PureYAML.Model.SourceRange

        public init(kind: Kind, range: PureYAML.Model.SourceRange) {
            self.kind = kind
            self.range = range
        }
    }
}