name : FilesystemOperationFailed.php <?php declare(strict_types=1); namespace League\Flysystem; interface FilesystemOperationFailed extends FilesystemException { public const OPERATION_WRITE = 'WRITE'; public const OPERATION_UPDATE = 'UPDATE'; // not used public const OPERATION_EXISTENCE_CHECK = 'EXISTENCE_CHECK'; public const OPERATION_DIRECTORY_EXISTS = 'DIRECTORY_EXISTS'; public const OPERATION_FILE_EXISTS = 'FILE_EXISTS'; public const OPERATION_CREATE_DIRECTORY = 'CREATE_DIRECTORY'; public const OPERATION_DELETE = 'DELETE'; public const OPERATION_DELETE_DIRECTORY = 'DELETE_DIRECTORY'; public const OPERATION_MOVE = 'MOVE'; public const OPERATION_RETRIEVE_METADATA = 'RETRIEVE_METADATA'; public const OPERATION_COPY = 'COPY'; public const OPERATION_READ = 'READ'; public const OPERATION_SET_VISIBILITY = 'SET_VISIBILITY'; public const OPERATION_LIST_CONTENTS = 'LIST_CONTENTS'; public function operation(): string; }