.NET 6 / EF Core - Add IPAddress DbFunctions (works with Npgsql 6 - PostgreSQL)

IPAddressDbFunctions.cs

public static class IPAddressDbFunctions
{
    /// <summary>
    /// Translates to (in PostgreSQL):
    /// <code>
    /// ('[address]'::inet &amp; '[subnetMask]'::inet)
    /// </code>
    /// </summary>
    // ('[address]'::inet & '[subnetMask]'::inet)
    public static IPAddress GetNetworkIP(IPAddress address, IPAddress subnetMask) => throw new NotSupportedException();

    /// <summary>
    /// Translates to (in PostgreSQL):
    /// <code>
    /// ('[address1]'::inet &amp; '[subnetMask]'::inet) = ('[address2]'::inet &amp; '[subnetMask]'::inet)
    /// </code>
    /// </summary>
    // ('[address1]'::inet & '[subnetMask]'::inet) = ('[address2]'::inet & '[subnetMask]'::inet)
    public static bool AreInSameNetwork(IPAddress address1, IPAddress address2, IPAddress subnetMask) => throw new NotSupportedException();
}

public static partial class ModelBuilderExtensions
{
    public static void ConfigureIPAddressDbFunctions(this ModelBuilder modelBuilder)
    {
        // Ref: https://docs.microsoft.com/en-us/ef/core/querying/user-defined-function-mapping#mapping-a-method-to-a-custom-sql

        static SqlExpression GetNetworkIPSqlExpression(SqlExpression address, SqlExpression subnet)
        {
            return new SqlBinaryExpression(
                ExpressionType.And,
                address,
                subnet,
                address.Type,
                address.TypeMapping
            );
        }

        modelBuilder
            .HasDbFunction(typeof(IPAddressDbFunctions).GetMethod(
                    nameof(IPAddressDbFunctions.GetNetworkIP),
                    new[] { typeof(IPAddress), typeof(IPAddress) })!
            )
            .HasTranslation(args => GetNetworkIPSqlExpression(args[0], args[1]));

        modelBuilder
            .HasDbFunction(typeof(IPAddressDbFunctions).GetMethod(
                    nameof(IPAddressDbFunctions.AreInSameNetwork),
                    new[] { typeof(IPAddress), typeof(IPAddress), typeof(IPAddress) })!
            )
            .HasTranslation(
                args => new SqlBinaryExpression(
                    ExpressionType.Equal,
                    GetNetworkIPSqlExpression(args[0], args[2]),
                    GetNetworkIPSqlExpression(args[1], args[2]),
                    args[0].Type,
                    args[0].TypeMapping
                )
            );
    }
}

MyDbContext.cs

public class MyDbContext : DbContext
{
    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        // ...
        modelBuilder.ConfigureIPAddressDbFunctions();
    }
}