Constant lexical_parse_integer::format::RUST_LITERAL

pub const RUST_LITERAL: u128 = NumberFormatBuilder::new().digit_separator(num::NonZeroU8::new(b'_')).required_digits(true).no_positive_mantissa_sign(true).no_special(true).internal_digit_separator(true).trailing_digit_separator(true).consecutive_digit_separator(true).build(); // 202_824_096_038_269_144_943_822_293_173_279u128

Number format for a Rust literal floating-point number.