 		values.removeValueForKey(element)
 	}
 
-	private var values: [Element:Unit]
+
+	// MARK: Private
+
+	private var values: [Element: Unit]
 }
 
 

		self.values = [Element:Unit](minimumCapacity: minimumCapacity)
	}

	/// The number of entries in the set.
	public var count: Int { return values.count }


		return self.values.isEmpty
	}


	// MARK: Primitive methods

	public func contains(element: Element) -> Bool {
		return values[element] != nil
	}
