Constant lexical_parse_float::format::D_LITERAL

pub const D_LITERAL: u128 = NumberFormatBuilder::new().digit_separator(num::NonZeroU8::new(b'_')).no_special(true).no_integer_leading_zeros(true).internal_digit_separator(true).trailing_digit_separator(true).consecutive_digit_separator(true).build(); // 202_824_096_038_269_144_943_822_293_177_356u128

Number format for a D literal floating-point number.