@dhruv1: You can check what your command is bound to by using the self-documentation feature of Emacs! Hit ctrl-h c for “Describe command” and then your combo C-c C-o. Depending on what mode you’re running it will give you different information for example that the keybinding is undefined.

@munen: I use ctrl-h k which prompts me to enter the key-binding ctrl-c ctrl-o. it opens up a new buffer with the description/documentation of the key-binding and where it’s defined

the problem I’m having is I’m trying to override the default keybinding in cider. I am using use-package and using the :bind option to do it. For some reason it’s not over riding the keybinding defined in the cider package.