Converting diagrams to text format

[mk197d]

• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Is your feature request related to a problem? Please describe.
It is unfeasible to write comments to a code block which operates on a structure. Ability to add diagrams in code comments.

Describe the solution you'd like
Convert diagrams drawn on draw.io to text format to be placed alongside code.

Describe alternatives you've considered
I have developed a VS code extension TexEtch which does the same and would like to integrate this feature directly into draw.io.

Additional context
Examples: