final class ManiphestTransaction
  extends PhabricatorApplicationTransaction {

  const TYPE_TITLE = 'title';
  const TYPE_STATUS = 'status';
  const TYPE_DESCRIPTION = 'description';
  const TYPE_OWNER  = 'reassign';
  const TYPE_PRIORITY = 'priority';
  const TYPE_EDGE = 'edge';
  const TYPE_SUBPRIORITY = 'subpriority';
  const TYPE_PROJECT_COLUMN = 'projectcolumn';
  const TYPE_MERGED_INTO = 'mergedinto';
  const TYPE_MERGED_FROM = 'mergedfrom';
  const TYPE_UNBLOCK = 'unblock';