Add refresh option to TemplateFieldCreator

src/backend/langflow/template/field/base.py

@@ -59,6 +59,9 @@ class TemplateFieldCreator(BaseModel, ABC):
     info: Optional[str] = ""
     """Additional information about the field to be shown in the tooltip. Defaults to an empty string."""
 
+    refresh: bool = False
+    """Specifies if the field should be refreshed. Defaults to False."""
+
     def to_dict(self):
         result = self.model_dump()
         # Remove key if it is None