# tests.extensions · FT4 Rell API · Chromia Docs (concept)

> Types burn_extensions_state crosschain_extensions_state mint_extensions_state transfer_extensions_state

Source: https://docs.chromia.com/pages/ft4-rell/-f-t4-library/tests.extensions/

PACKAGE

# tests.extensions

## Types

[burn\_extensions\_state](https://docs.chromia.com/pages/ft4-rell/-f-t4-library/tests.extensions/burn_extensions_state/)

[crosschain\_extensions\_state](https://docs.chromia.com/pages/ft4-rell/-f-t4-library/tests.extensions/crosschain_extensions_state/)

[mint\_extensions\_state](https://docs.chromia.com/pages/ft4-rell/-f-t4-library/tests.extensions/mint_extensions_state/)

[transfer\_extensions\_state](https://docs.chromia.com/pages/ft4-rell/-f-t4-library/tests.extensions/transfer_extensions_state/)

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