def METHOD_NAME(
    self,
    cmd: str = "copy running-config startup-config",
    confirm: bool = False,
    confirm_response: str = "",
) -> str:
    self.enable()
    output = ""
    if confirm:
        output += self._send_command_timing_str(
            command_string=cmd, strip_prompt=False, strip_command=False
        )
        if confirm_response:
            output += self._send_command_timing_str(
                confirm_response, strip_prompt=False, strip_command=False
            )
        else:
            # Send enter by default
            output += self._send_command_timing_str(
                self.RETURN, strip_prompt=False, strip_command=False
            )
    else:
        # NX-OS is very slow on save_config ensure it waits long enough.
        output += self._send_command_str(
            command_string=cmd,
            strip_prompt=False,
            strip_command=False,
            read_timeout=100,
        )
    return output