\.niError: undeclared identifier: 'shallow'

[demosthenez]

.nimble\pkgs\nimx-0.1\nimx\mini_profiler.nim(19, 12) Error: undeclared identifier: 'shallow'

I'm new to reporting issues on github so forgive me in advance for any breaches of best practices. This is an error coming up with every compilation attempt for me on windows.