@interface ATXStableContactRepresentationDatabase : ATXAbstractVersionedDatabase - (BOOL)migrate; - (id)init; - (long long)latestVersion; - (id)cnContactId:(id)a0; - (id)deleteAllData; - (id)stableContactIdentifier:(id)a0; - (void)insertCnContactIdToStableContactIdentifierWithCnContactId:(id)a0 stableContactIdentifier:(id)a1; - (BOOL)_runMigrationSteps:(id)a0; @end