Constant lexical_write_float::format::D_STRING

pub const D_STRING: u128 = NumberFormatBuilder::new().digit_separator(num::NonZeroU8::new(b'_')).integer_internal_digit_separator(true).fraction_internal_digit_separator(true).integer_trailing_digit_separator(true).fraction_trailing_digit_separator(true).build(); // 202_824_096_038_269_144_927_312_438_886_412u128

Number format to parse a D float from string.