class_docstr: Datmo Config properties
  
  Parameters
  ----------
  home : str
      project home directory
  damto_directory_name : str
      datmo directory name
  remote_credentials : tuple
  
  Returns
  -------
  Config
    Config Singleton
code: def __new__(cls):  # __new__ always a classmethod
      if not Config.instance:
          Config.instance = Config.__InternalConfig()
      return Config.instance
  
file_path: datmo/datmo/config.py
imports: import logging
  import os
  import datetime
  from datmo.core.util.logger import DatmoLogger
  from datmo.core.util.json_store import JSONStore
  from datmo.core.util.misc_functions import parameterized
label_desc: Use image node_id 1 for calling the Config obj's underlying member method code with example usage: obj.__new__(cls) and returns: Config