isvalid
cmd.isvalid = 1;
cmd.isvalid = 1;
cmd.isvalid = 1;
cmd.isvalid = 1;
cmd.isvalid = 1;
uint8_t isvalid;
uint8_t isvalid;
uint8_t isvalid;
uint8_t isvalid;
uint8_t isvalid;
if (!isvalid(opts.cmd))