Constant lexical_core::format::SWIFT_LITERAL

pub const SWIFT_LITERAL: u128 = NumberFormatBuilder::new().digit_separator(num::NonZeroU8::new(b'_')).required_digits(true).no_special(true).internal_digit_separator(true).trailing_digit_separator(true).consecutive_digit_separator(true).build(); // 0x0000_0a00_0000_005f_0000_0fc7_0000_040fu128

Number format for a Swift literal floating-point number.