pub fn new(state: bool) -> Self {

        RepeatRequest(state)

    }

    fn serialize(&self) -> String {

        let state = if self.0 { "1" } else { "0" };

        format!("{} {}\n", Self::COMMAND, state)

    }

    fn parse(mut parts: RequestTokenizer<'_>) -> Result<Self, RequestParserError> {

        let state = match parts.next() {

            Some("0") => false,

            Some("1") => true,

            Some(s) => {

                return Err(RequestParserError::SubtypeParserError {

                    argument_index: 0,

                    expected_type: "bool",

                    raw_input: s.to_owned(),

                });

            None => return Err(Self::missing_arguments_error(0)),

        Self::throw_if_too_many_arguments(parts)?;

        Ok(RepeatRequest(state))

    }