Add format parameter when receiving/creating or updating notebook definitions

[lBilali]

adding format parameter for get_notebook_definition, create_notebook and update_notebook_definition

when format parameter is not provided the notebook definition should be GIT friendly
if format = 'ipynb' is provided then the definition should be standard ipynb which is a json file

fixed issues with encoding the content within create_notebook and update_notebook_definition functions

create_notebook now by default has format=None which is a braking change

[lBilali]

Hei,
Any thoughts on this?

[m-kovalsky]

Hei, Any thoughts on this?

This will need to wait until after fabcon. Only bugfixes and features relevant to fabcon are being taken up now.

[a-holm]

Thanks for adding the format parameter and fixing the encoding issues! This looks like a valuable addition for managing different notebook formats.

A few minor points:

• You fixed a small, unrelated typo fix in _helper_functions.py. While harmless, mentioning minor cleanups like this in the description (or separating them) is good practice. Might make it easier for the reviewers.
• It looks like you also fixed a potential path issue in create_notebook and update_notebook_definition (changing notebook-content..{type} to notebook-content.{type}). Good catch! Just wanted to mention it, seems tricky to find.

[lBilali]

hi @m-kovalsky ,
Did you have any time to look at this?

thanks

[m-kovalsky]

just a simple code-simplification. then will approve & merge.

[m-kovalsky]

thank you!