@leorize
The import in question:
https://github.com/heysokam/xcb.nim/blob/a8de74fc8dfc61adc3c55ecb1bdca150563c39d
9/src/xcb/connection.nim#L8
The line that triggers the bug when `, none` is not listed:
https://github.com/heysokam/xcb.nim/blob/a8de74fc8dfc61adc3c55ecb1bdca150563c39d
9/src/xcb/connection.nim#L86