void i9e_complete_option(char **opts, struct i9e_completion_info *ci,
struct i9e_completion_result *cr);
int i9e_print_completions(struct i9e_completer *completers);
void i9e_complete_option(char **opts, struct i9e_completion_info *ci,
struct i9e_completion_result *cr);
int i9e_print_completions(struct i9e_completer *completers);