 
 public struct Audio {
 	
-	var file_id: String
-	var duration: Int
-	
-	/* OPTIONAL. */
-	var performer: String?
-	var title: String?
-	var mime_type: String?
-	var file_size: Int?
+	public var file_id: String
+	public var duration: Int
+	
+	/* OPTIONAL. */
+	public var performer: String?
+	public var title: String?
+	public var mime_type: String?
+	public var file_size: Int?
 	
 	init(file_id: String,
 	     duration: Int,


public struct Sticker {
	
	var file_id: String
	var width: Int
	var height: Int
	
	/* Optional. */
	var thumb: PhotoSize?
	var emoji: String?
	var file_size: Int?
	
	init(file_id: String,
	     width: Int,


public struct Voice {
	
	public var file_id: String
	public var duration: Int
	
	/* Optional. */
	public var mime_type: String?
	public var file_size: Int?
	
	init(file_id: String,
	     duration: Int,
