code: def stop(self):
      callBigDlFunc(self.bigdl_type, "flServerStop", self.value)
  
file_path: BigDL/python/ppml/src/bigdl/ppml/fl/fl_server.py
imports: from bigdl.ppml.fl import *
label_desc: Use image node_id 4 for calling the FLServer obj's underlying member method code with example usage: obj.stop() without return types