Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, actions/setup-dotnet@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

The type name 'x' only contains lower-cased ascii characters. Such names may become reserved for the language.

'SExp.Equals(dynamic)' hides inherited member 'object.Equals(object?)'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'bytes' in 'string Encoding.GetString(byte[] bytes)'.

Possible null reference argument for parameter 'arrays' in 'byte[] SHA256Tree.CombineByteArrays(params byte[][] arrays)'.

Possible null reference argument for parameter 'blob' in 'BigInteger Casts.IntFromBytes(byte[] blob)'.

Possible null reference argument for parameter 'blob' in 'BigInteger Casts.IntFromBytes(byte[] blob)'.

Possible null reference return.

Converting null literal or possible null value to non-nullable type.