COctet String : max length

[11bis]

Hi @farhadi and maintainers,
Unless I am wrong the lib is not considering the field size as per SMPP specification.
For example, "bind_transmitter.password" is "C-Octet String" with max length = 9. Am I correct ?
If so, is it intentional or maybe planned in future release ?
I noticed that all types are statically defined in "defs.types".
What would be the best way to implement such evolution ?
Thanks a lot for your support