Binding 'enter command mode' to some key

[Giatroo]

Summary

I want to be able to bind the command 'enter command mode' to some key, but I tried many, many key combinations and none of them worked. When I run the command through the command palete, it works, but the bindings I'm trying don't do anything.

Environment

• [ ] Operating system : Ubuntu Gnome 20.04 64bit
• [ ] Web browser : Google Chrome 86.0.4240.198 (Official Build) (64-bit)
• [ ] Version or revision of Jupyter Notebook : 6.1.5
• [ ] Revision of jupyter-vim-binding : The current master

[Giatroo]

Oh, I actually realized that :q does what I want.

Sorry for the issue.