code: func GetDeprecatedProperties(configDicts ...map[string]interface{}) map[string]string {
  	deprecated := map[string]string{}
  
  	for _, configDict := range configDicts {
  		deprecatedProperties := getProperties(getServices(configDict), types.DeprecatedProperties)
  		for key, value := range deprecatedProperties {
  			deprecated[key] = value
  		}
  	}
  
  	return deprecated
  }
docs: // GetDeprecatedProperties returns the list of any deprecated properties that
  // are used in the compose files.