finshed ch17.4

.obsidian/workspace.json

@@ -77,6 +77,20 @@
               "title": "Futures in Sequence"
             }
           },
+          {
+            "id": "ee4116419493acd3",
+            "type": "leaf",
+            "state": {
+              "type": "markdown",
+              "state": {
+                "file": "Traits for Async.md",
+                "mode": "source",
+                "source": false
+              },
+              "icon": "lucide-file",
+              "title": "Traits for Async"
+            }
+          },
           {
             "id": "2a974ca5442d705f",
             "type": "leaf",
@@ -130,7 +144,7 @@
             }
           }
         ],
-        "currentTab": 4
+        "currentTab": 5
       }
     ],
     "direction": "vertical"
@@ -273,10 +287,11 @@
       "command-palette:Open command palette": false
     }
   },
-  "active": "8d868fd701da33a8",
+  "active": "ee4116419493acd3",
   "lastOpenFiles": [
-    "Any Number of Futures.md",
     "Futures in Sequence.md",
+    "Traits for Async.md",
+    "Any Number of Futures.md",
     "Futures and Async.md",
     "Async, Await, Futures and Streams.md",
     "Concurrency.md",
@@ -301,7 +316,6 @@
     "Test_Organization.md",
     "Traits.md",
     "Modules and Use.md",
-    "Modules.md",
     "does_not_compile.svg",
     "Untitled.canvas",
     "Good and Bad Code/Commenting Pratices",