class_docstr: This should be a pickable class.
class_docstr_tok: ["This","should","be","a","pickable","class","."]
code: def _gen_master_command(self):
      webui = "true" if self.include_webui else "false"
      command = (
          "{} start --head "
          "--include-dashboard {} --dashboard-host 0.0.0.0 --port {} "
          "--num-cpus {}".format(
              self.ray_exec,
              webui,
              self.redis_port,
              self.ray_node_cpu_cores,
          )
      )
      if self.redis_password:
          command = command + " --redis-password {}".format(
              self.redis_password
          )
      if self.labels:
          command = command + " " + self.labels
      return RayServiceFuncGenerator._enrich_command(
          command=command,
          object_store_memory=self.object_store_memory,
          extra_params=self.extra_params,
      )
  
imports: import os
  import re
  import subprocess
  import time
  import uuid
  import random
  import warnings
  import tempfile
  import filelock
  import multiprocessing
  from packaging import version
  from zoo.ray.process import session_execute, ProcessMonitor
  from zoo.ray.utils import is_local
  from zoo.ray.utils import resource_to_bytes
  from zoo.ray.utils import get_parent_pid
label_desc: Use image node_id 5 for calling the RayServiceFuncGenerator obj's underlying member method code with example usage: obj._gen_master_command() and returns: RayServiceFuncGenerator