code: func (arc *ConfigFactory) GetConfigurations() map[string]interface{} {
  	if arc.initSuccess == false {
  		return nil
  	}
  
  	return arc.configMgr.GetConfigurations()
  }
docs: // GetConfigurations dump complete configuration managed by config-client
  //   Only return highest priority key value:-
  //   1. ConfigFile 		2. Environment Variable
  //   3. Commandline Argument	4. config Center configuration
  //   config-center value being the highest priority