unable to run the examples: "ModuleNotFoundError: No module named 'bonobo_sqlalchemy'"

[boredland]

I'm trying to get an understanding toward what is possible with this extension and was trying to run the examples. I expected that I'd need to install bonobo and bonobo[sqlalchemy] and would be ready to run the sequel_load.py for example:
Traceback (most recent call last): File "<input>", line 1, in <module> File "/home/jonass/.IntelliJIdea2018.3/config/plugins/python/helpers/pydev/_pydev_bundle/pydev_umd.py", line 197, in runfile pydev_imports.execfile(filename, global_vars, local_vars) # execute the script File "/home/jonass/.IntelliJIdea2018.3/config/plugins/python/helpers/pydev/_pydev_imps/_pydev_execfile.py", line 18, in execfile exec(compile(contents+"\n", file, 'exec'), glob, loc) File "/home/jonass/IdeaProjects/bonobo/sequel_load.py", line 5, in <module> import bonobo_sqlalchemy File "/home/jonass/.IntelliJIdea2018.3/config/plugins/python/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import module = self._system_import(name, *args, **kwargs) ModuleNotFoundError: No module named 'bonobo_sqlalchemy'