code: def __str__(self):
      return "<code package for flow %s (created @ %s)>" % (
          self.flow_name,
          time.strftime("%a, %d %b %Y %H:%M:%S", self.create_time),
      )
  
imports: import importlib
  import os
  import sys
  import tarfile
  import time
  import json
  from io import BytesIO
  from .extension_support import EXT_PKG, package_mfext_all
  from .metaflow_config import DEFAULT_PACKAGE_SUFFIXES
  from .exception import MetaflowException
  from .util import to_unicode
  from .None import R, INFO_FILE
label_desc: Use image node_id 6 for calling the MetaflowPackage obj's underlying member method code with example usage: obj.__str__() and returns: unknown