How do I find out if a SQLite index is unique? (With SQL)

SELECT * FROM sqlite_master WHERE name = 'sqlite_autoindex_user_1'

PRAGMA index_info(sqlite_autoindex_user_1);

PRAGMA INDEX_LIST('table_name');

select count(*) from t
group by foo, bar, baz
having count(*) > 1

select count(*) from (
    select count(*) from t
    group by foo, bar, baz
    having count(*) > 1
)