765     def power_key(self, press_secs='tab'):  argument
854     def arrow_up(self, press_secs='tab'):  argument
867     def arrow_down(self, press_secs='tab'):  argument
880     def ctrl_d(self, press_secs='tab'):  argument
889     def ctrl_r(self, press_secs='tab'):  argument
897     def ctrl_s(self, press_secs='tab'):  argument
906     def ctrl_u(self, press_secs='tab'):  argument
915     def ctrl_enter(self, press_secs='tab'):  argument
924     def ctrl_key(self, press_secs='tab'):  argument
933     def enter_key(self, press_secs='tab'):  argument
942     def refresh_key(self, press_secs='tab'):  argument
951     def ctrl_refresh_key(self, press_secs='tab'):  argument
962     def imaginary_key(self, press_secs='tab'):  argument
973     def sysrq_x(self, press_secs='tab'):  argument