class_docstr: docker env class wrapper
class_docstr_tok: ["docker","env","class","wrapper"]
code: def start_up(self, hostname, port):
      res = True
      try:
          self.set_hostname(hostname)
          self.set_port(port)
      except Exception as e:
          logger.error(str(e))
          res = False
      return res
  
imports: import logging
  from milvus_benchmark.env.base import BaseEnv
label_desc: Use image node_id 2 for calling the LocalEnv obj's underlying member method code with example usage: obj.start_up(hostname, port) and returns: res