code: def setup_logging(
          default_level=logging.INFO,
          default_path="{}/logging.json".format(
              os.getenv(
                  "LOG_DIR",
                  os.path.dirname(os.path.realpath(__file__)))),
          env_key="LOG_CFG",
          config_name=None):
      
      path = default_path
      file_name = default_path.split("/")[-1]
      if config_name:
          file_name = config_name
  
      path = "{}/{}".format(
                  "/".join(default_path.split("/")[:-1]),
                  file_name)
  
      value = os.getenv(env_key, None)
      if value:
          path = value
      if os.path.exists(path):
          with open(path, "rt") as f:
              config = json.load(f)
          logging.config.dictConfig(config)
          return
  
      else:
          cwd_path = os.getcwd() + "/antinex_client/log/{}".format(
                                      file_name)
          if os.path.exists(cwd_path):
              with open(cwd_path, "rt") as f:
                  config = json.load(f)
              logging.config.dictConfig(config)
              return
          rels_path = os.getcwd() + "/../log/{}".format(
                                      file_name)
          if os.path.exists(rels_path):
              with open(rels_path, "rt") as f:
                  config = json.load(f)
              logging.config.dictConfig(config)
              return
          else:
              logging.basicConfig(level=default_level)
              return
docs: setup_logging
  
      Setup logging configuration
  
      :param default_level: level to log
      :param default_path: path to config (optional)
      :param env_key: path to config in this env var
      :param config_name: filename for config