add ´__repr__´ (#2091)

Author: ndonkoHenri

sdk/python/packages/flet-core/src/flet_core/control.py

@@ -156,6 +156,9 @@ def __str__(self):
             attrs[k] = v[0]
         return f"{self._get_control_name()} {attrs}"
 
+    def __repr__(self):
+        return f"{self.__class__.__name__}(" + ", ".join(f"{k}={v[0]}" for k, v in self.__attrs.items()) + ")"
+
     # event_handlers
     @property
     def event_handlers(self):