Refine biomek

unilabos/devices/liquid_handling/biomek.py

@@ -9,7 +9,7 @@ from pylabrobot.resources import (
     Container,
     Coordinate,
 )
-
+import copy
 from unilabos.ros.nodes.resource_tracker import DeviceNodeResourceTracker  # type: ignore
 from .liquid_handler_abstract import LiquidHandlerAbstract
 
@@ -570,7 +570,7 @@ class LiquidHandlerBiomek:
 
 
 if __name__ == "__main__":
-  
+
     print("=== Biomek完整流程测试 ===")
     print("包含: 仪器设置 + 完整实验步骤")