diff --git a/lib/src/debug.dart b/lib/src/debug.dart
index 7e0673f..df6e695 100644
--- a/lib/src/debug.dart
+++ b/lib/src/debug.dart
@@ -59,17 +59,28 @@ extension on String {
   }
 }
 
+/// RxDart debug operator - Port from [RxSwift Debug Operator](https://github.com/ReactiveX/RxSwift/blob/main/RxSwift/Observables/Debug.swift)
+///
 /// Prints received events for all listeners on standard output.
 extension DebugStreamExtension<T> on Stream<T> {
+  /// RxDart debug operator - Port from [RxSwift Debug Operator](https://github.com/ReactiveX/RxSwift/blob/main/RxSwift/Observables/Debug.swift)
+  ///
   /// Prints received events for all listeners on standard output.
+  ///
   /// The [identifier] is printed together with event description to standard output.
+  /// If [identifier] is null, it will be current stacktrace, including location, line and member.
+  ///
+  /// If [log] is null, this [Stream] is returned without any transformations.
+  /// This is useful for disabling logging in release mode of an application.
+  ///
+  /// If [trimOutput] is true, event text will be trimmed to max 40 characters.
   Stream<T> debug({
     String? identifier,
     void Function(String)? log = print,
     bool trimOutput = false,
   }) {
     if (log == null) {
-      // logging is disabled
+      // logging is disabled.
       return this;
     }