// command. The input parameter is a UCIInputParser. It is assumed
// that this parser has consumed the first token of the UCI command
// ("setoption"), and is ready to read the second token ("name", if
// command. The input parameter is a UCIInputParser. It is assumed
// that this parser has consumed the first token of the UCI command
// ("setoption"), and is ready to read the second token ("name", if