public static string ToExcerptString(this IBlockExcerpt excerpt) =>
$"{excerpt.GetType().Name} {{" +
$" {nameof(IBlockExcerpt.ProtocolVersion)} = {excerpt.ProtocolVersion}," +
$" {nameof(IBlockExcerpt.Index)} = {excerpt.Index}," +
$" {nameof(IBlockExcerpt.Hash)} = {excerpt.Hash}," +
$" {nameof(IBlockExcerpt.TotalDifficulty)} = {excerpt.TotalDifficulty}" +
" }";
