add singleton logging

utils/log_utils.py

@@ -0,0 +1,14 @@
+from loguru import logger
+
+
+class SingletonLogger:
+    __instance = None
+
+    @staticmethod
+    def get_logger():
+        if not SingletonLogger.__instance:
+            SingletonLogger.__instance = logger
+        return SingletonLogger.__instance
+
+
+logger = SingletonLogger.get_logger()