fix: correct default model (gpt-4o), correct token counts, and correct TaskOutput attributes (added agent) (#749)

* fix: 'from datetime import datetime for logging' to print the timestamp

* fix: correct default model (gpt-4o), correct token counts, and correct TaskOutput attributes (added agent)

* test: verify Task callback data is an instance of TaskOutput

src/crewai/utilities/logger.py

@@ -1,3 +1,4 @@
+from datetime import datetime
 from crewai.utilities.printer import Printer
 
 
@@ -13,6 +14,7 @@ class Logger:
     def log(self, level, message, color="bold_green"):
         level_map = {"debug": 1, "info": 2}
         if self.verbose_level and level_map.get(level, 0) <= self.verbose_level:
-            timestamp = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
-            self._printer.print(f"[{timestamp}][{level.upper()}]: {message}", color=color)
-
+            timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+            self._printer.print(
+                f"[{timestamp}][{level.upper()}]: {message}", color=color
+            )