anchor.diff:    ///
     /// // Generate a key-pair.
     /// final keyPair = await RsassaPkcs1V15PrivateKey.generateKey(
  -  ///   modulusLength: 4096,
  -  ///   publicExponent: BigInt.from(65537),
  -  ///   hash: HashAlgorithm.sha256,
  +  ///   4096,
  +  ///   BigInt.from(65537),
  +  ///   sha256,
     /// );
     ///
     /// // Export public, so Alice can use it later.
  
positive.code: /// Key for signing/verifying with HMAC.
  ///
  /// An [HmacSecretKey] instance holds a symmetric secret key and a
  /// [HashAlgorithm], which can be used to create and verify HMAC signatures as
  /// specified in [FIPS PUB 180-4][1].
  ///
  /// Instances of [HmacSecretKey] can be imported using
  
negative.code:   /// final keyPair = await RsassaPkcs1V15PrivateKey.generateKey(
    ///   4096,
    ///   BigInt.from(65537),
    ///   sha256,
    /// );
    ///
    /// // Using privateKey Bob can sign a message for Alice.
  