let (input, (_, _, value)) = tuple((tag_no_case("CN"), char('='), cut(param_value)))(input)?;
fn param_free_busy_time_type<'a, E>(input: &'a [u8]) -> IResult<&'a [u8], ParamValue<'a>, E>
fn param_participation_status<'a, E>(input: &'a [u8]) -> IResult<&'a [u8], ParamValue<'a>, E>
fn param_time_zone_identifier<'a, E>(input: &'a [u8]) -> IResult<&'a [u8], ParamValue<'a>, E>