Constant lexical_core::format::RUBY_LITERAL

pub const RUBY_LITERAL: u128 = NumberFormatBuilder::new().digit_separator(num::NonZeroU8::new(b'_')).required_digits(true).no_special(true).no_integer_leading_zeros(true).no_float_leading_zeros(true).internal_digit_separator(true).build(); // 0x0000_0a00_0000_005f_0000_0007_0000_340fu128

Number format for a Ruby literal floating-point number.