fn format_bits(self) -> u8 {
        use QrCodeEcc::*;
        match self {
            Low => 1,
            Medium => 0,
            Quartile => 3,
            High => 2,
        }
    }
// Returns an unsigned 2-bit integer (in the range 0 to 3).
Returns an unsigned 2-bit integer (in the range 0 to 3).
Returns an unsigned 2 - bit integer ( in the range 0 to 3 ) .
fn format_bits(self) -> u8 {
        use QrCodeEcc::*;
        match self {
            Low => 1,
            Medium => 0,
            Quartile => 3,
            High => 2,
        }
    }
fn format_bits ( self ) -> u8 { use QrCodeEcc :: * ; match self { Low => 1 , Medium => 0 , Quartile => 3 , High => 2 , } }
Returns an unsigned 2-bit integer (in the range 0 to 3).
Returns an unsigned 2 - bit integer ( in the range 0 to 3 ) .
self