code: def init_fl_context(client_id: int, server_addr="localhost:8980"):
      """Initialize FL Context. Need to be called before calling any FL Client algorithms.
  
      :param client_id: An integer, should be in range of [1, total_party_number].
      :param server_addr: FL Server address.
      """
      FLClient.load_config()
      FLClient.set_client_id(client_id)
      # target can be set in config file, and also could be overwritten here
      FLClient.set_target(server_addr)
      FLClient.ensure_initialized()
  
label_desc: Use image node_id 1 for calling a global function with example usage: init_fl_context(client_id, server_addr) without return types