update segment training (#57)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: ayush chaurasia <ayush.chaurarsia@gmail.com>

ultralytics/yolo/utils/__init__.py

@@ -3,6 +3,7 @@ import logging.config
 import os
 import platform
 import sys
+import threading
 from pathlib import Path
 
 # Constants
@@ -130,3 +131,13 @@ class TryExcept(contextlib.ContextDecorator):
         if value:
             print(emojis(f"{self.msg}{': ' if self.msg else ''}{value}"))
         return True
+
+
+def threaded(func):
+    # Multi-threads a target function and returns thread. Usage: @threaded decorator
+    def wrapper(*args, **kwargs):
+        thread = threading.Thread(target=func, args=args, kwargs=kwargs, daemon=True)
+        thread.start()
+        return thread
+
+    return wrapper