How to extract A2L specific parameters

[MatinF]

Thanks for a great library!

I am trying to use the library in parsing A2L files for XCP on CAN use cases.

As part of this, I am trying to extract the below parameters in a consistent way across A2L files:

xcp_parameters = {"MAX_CTO": None, "MAX_DTO": None, "CAN_ID_MASTER": None, "CAN_ID_MASTER_EXTENDED": None, "CAN_ID_SLAVE": None, "CAN_ID_SLAVE_EXTENDED": None, "XCP_VERSION": None, "BYTE_ORDER": None}

I seem partially able to do this via e.g. looking at sections like below:

ast["PROJECT"]["MODULE"]["IF_DATA"]["XCP_ON_CAN"]["DataParams"]

And doing some ad hoc indexing. However, it seems to not be a stable way to do it - and I am wondering if there is a better method. For example, it seems like information such as MAX_DTO and MAX_CTO values are hard to extract via the methods I am trying to use. It would be greatly appreciated if you have suggestions.