fix output annotation

examples/tutorial.md

@@ -107,6 +107,7 @@ using NATSBridge
 
 # Receive and process message
 env = smartreceive(msg; fileserver_download_handler=_fetch_with_backoff)
+# Returns: ::JSON.Object{String, Any} - key-value structure resemble msg_envelope_v1
 for (dataname, data, type) in env["payloads"]
     println("Received $dataname: $data")
 end

examples/walkthrough.md

@@ -163,6 +163,7 @@ end
 
 function handle_message(handler::ChatHandler, msg::NATS.Msg)
     env = smartreceive(msg, fileserver_download_handler=_fetch_with_backoff)
+    # Returns: ::JSON.Object{String, Any} - key-value structure resemble msg_envelope_v1
     
     # Extract sender info from envelope
     sender = get(env, "sender_name", "Anonymous")
@@ -281,6 +282,7 @@ end
 function download_file(service::FileDownloadService, msg::NATS.Msg, sender::String, download_id::String)
     # Subscribe to sender's file channel
     env = smartreceive(msg, fileserver_download_handler=fetch_from_url)
+    # Returns: ::JSON.Object{String, Any} - key-value structure resemble msg_envelope_v1
     
     # Process each payload
     for (dataname, data, type) in env["payloads"]
@@ -518,6 +520,7 @@ end
 
 function process_reading(receiver::SensorReceiver, msg::NATS.Msg)
     env = smartreceive(msg, receiver.fileserver_download_handler)
+    # Returns: ::JSON.Object{String, Any} - key-value structure resemble msg_envelope_v1
     
     for (dataname, data, data_type) in env["payloads"]
         if data_type == "dictionary"