# update_main_auth_descriptor_resolver · FT4 Rell API · Chromia Docs (concept)

> function update_ main_ auth_ descriptor_ resolver(args: gtv, account_ id: byte_ array, auth_ descriptor_ ids: list<byte_ array>): byte_ array? 

Source: https://docs.chromia.com/pages/ft4-rell/-f-t4-library/lib.ft4.external.accounts/update_main_auth_descriptor_resolver/

FUNCTION

# update\_main\_auth\_descriptor\_resolver

```signature
function update_main_auth_descriptor_resolver(args: gtv, account_id: byte_array, auth_descriptor_ids: list<byte_array>): byte_array?
```

[Source](https://gitlab.com/chromaway/ft4-lib/-/blob/development/rell/src/lib/ft4/external/accounts/operations.rell#lines-196)

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-rell/-f-t4%20-library/lib.ft4.external.accounts/update_main_auth_descriptor_resolver.html)Generated API reference, mirrored from the live docs