genkey: always results in "Input error (class 'TypeError')" / not working at all

[HoboDev]

OnlyKey CLI v1.2.10
OnlyKey FW v3.0.4-prodc

I'm trying to generate a key following the commands (genkey [key slot] [type] [features]) but it does not work at all.

Output:

OnlyKey> genkey ECC1 x s

<class 'TypeError'>
Input error. See available commands with examples here https://docs.crp.to/command-line.html

Also this part taken from the examples seems to mismatch with the documentation above (and also does not work, it yields the same error as above)

Generate ECC key in slot ECC1 to a custom value (Slots ECC1-ECC16 are available for ECC keys. Supported ECC curves X25519(x), NIST256P1(n), SECP256K1(s))

$ onlykey-cli

OnlyKey> genkey ECC1 x

Successfully set ECC Key

[HoboDev]

looking at this file python-onlykey/onlykey/cli.py
in line 406 and line 939 it does not look like it's doing anything generative either way (except we are talking magic number):

only_key.setkey(slot_id, sys.argv[3], sys.argv[4], 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff')