code: def add_env(self, k, v):
      if self._env is None:
          self._env = dict()
      self._env[k] = v
  
imports: import os
  import textwrap
  from urllib.parse import urlparse
  from ...utils import parse_readable_size
label_desc: Use image node_id 4 for calling the AppContainerConfig obj's underlying member method code with example usage: obj.add_env(k, v) without return types