{ "users", PKG_USERS, YAML_SEQUENCE_NODE, parse_sequence}, /* compatibility with old format */
{ "users", PKG_USERS, YAML_MAPPING_NODE, parse_mapping},
{ "groups", PKG_GROUPS, YAML_SEQUENCE_NODE, parse_sequence},
{ "groups", PKG_GROUPS, YAML_MAPPING_NODE, parse_mapping}, /* compatibility with old format */
{ NULL, -99, -99, NULL}
};