Creating a python plugin ModuleNotFoundError: No module named 'rzlang'

[kuterd]

Hello everyone, I am trying to create a plugin for a custom architecture.
I am following https://book.rizin.re/src/plugins/python.html

 rizin -I mycpu.py 
Traceback (most recent call last):
  File "/home/normal/projects/rizin_test/mycpu.py", line 1, in <module>
    import rzlang
ModuleNotFoundError: No module named 'rzlang'

Thanks

[konchunas]

That is exactly my problem. I am on Mac OS with rizin installed using brew in case that matters.