class_docstr: Fake CLI Config Class
class_docstr_tok: ["Fake","CLI","Config","Class"]
code: def __getitem__(self, key):
      return self.config[key]
  
file_path: streamalert/tests/unit/helpers/config.py
imports: import json
label_desc: Use image node_id 3 for calling the MockCLIConfig obj's underlying member method code with example usage: obj.__getitem__(key) and returns: self