Documented the ISOTimestampTranscoder transcoder in the library target.

Sources/Internal/Extensions/DateFormatter+Properties.swift

@@ -14,7 +14,13 @@ import Foundation
 
 extension DateFormatter {
     
-    static var isoDateTime: DateFormatter {
+    // MARK: Properties
+    
+    /// An ISO timestamp formatter.
+    ///
+    /// This formatter implements the `yyyy-MM-dd'T'HH:mm:ss.SSSSSS` custom date format.
+    /// Within the context of this library, this formatter is solely used to decode a date formatted as a timestamp that is returned by the ``AmiiboService/getLastUpdated()`` function.
+    static var isoTimestamp: DateFormatter {
         let formatter = DateFormatter()
         
         formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSSSS"

Sources/Internal/Transcoders/ISOTimestampTranscoder.swift

@@ -13,10 +13,18 @@
 import Foundation
 import OpenAPIRuntime
 
-struct ISODateTranscoder: DateTranscoder {
-
+/// A type that allows the decoding and encoding of ISO timestamp dates, defined by the `yyyy-MM-dd'T'HH:mm:ss.SSSSSS` custom date format.
+struct ISOTimestampTranscoder {
+    
     // MARK: Properties
-    private let dateFormatter: DateFormatter = .isoDateTime
+
+    private let dateFormatter: DateFormatter = .isoTimestamp
+    
+}
+
+ // MARK: - DateTranscoder
+
+extension ISOTimestampTranscoder: DateTranscoder {
     
     // MARK: Functions