1def migrate_up(mgr): 2 mgr.execute("alter table test_attributes modify column value varchar(1024);") 3 mgr.execute("alter table iteration_attributes modify column value varchar(1024);") 4 5def migrate_down(mgr): 6 mgr.execute("alter table test_attributes modify column value varchar(100);") 7 mgr.execute("alter table iteration_attributes modify column value varchar(100);") 8