 	///         is to be attached.
  	public let ended: Signal<(), NoError>
 
-	/// MARK: Initializers
+	// MARK: Initializers
 
 	/// Initialize a `Lifetime` object with the supplied ended signal.
 	///

		return Lifetime(ended: .empty)
	}

	/// MARK: Instance properties

	/// A signal that sends a `completed` event when the lifetime ends.
	///

/// Represents the lifetime of an object, and provides a hook to observe when
/// the object deinitializes.
public final class Lifetime {
	// MARK: Type properties and methods

	/// Factory method for creating a `Lifetime` and its associated `Token`.
	public static func make() -> (lifetime: Lifetime, token: Token) {
