class_docstr: Fake CLI Config Class
class_docstr_tok: ["Fake","CLI","Config","Class"]
code: def __setitem__(self, key, new_value):
      self.config.__setitem__(key, new_value)
  
file_path: streamalert/tests/unit/helpers/config.py
imports: import json
label_desc: Use image node_id 4 for calling the MockCLIConfig obj's underlying member method code with example usage: obj.__setitem__(key, new_value) without return types