private const EXTRA_MAP = [ 'docComment' => 'getDocComment', 'extension' => 'getExtensionName', 'isDisabled' => 'isDisabled', 'isDeprecated' => 'isDeprecated', 'isInternal' => 'isInternal', 'isUserDefined' => 'isUserDefined', 'isGenerator' => 'isGenerator', 'isVariadic' => 'isVariadic', ];