@cmd('<STR_LIT>', options='<STR_LIT>')<EOL>def unbind_key(pymux, variables):
key = variables['<STR_LIT>']<EOL>needs_prefix = not variables['<STR_LIT>']<EOL>pymux.key_bindings_manager.remove_custom_binding(<EOL>key, needs_prefix=needs_prefix)<EOL>
Remove key binding.