BinaryDataJsonConverter
Serializes  BinaryData instances as Base64 JSON strings.
                using System.Runtime.CompilerServices;
namespace System.Text.Json.Serialization
{
    [System.Runtime.CompilerServices.NullableContext(1)]
    [System.Runtime.CompilerServices.Nullable(new byte[] {
        0,
        1
    })]
    public sealed class BinaryDataJsonConverter : JsonConverter<BinaryData>
    {
        [return: System.Runtime.CompilerServices.Nullable(2)]
        public override BinaryData Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
        {
            return BinaryData.FromBytes(reader.GetBytesFromBase64());
        }
        public override void Write(Utf8JsonWriter writer, BinaryData value, JsonSerializerOptions options)
        {
            writer.WriteBase64StringValue(value.ToMemory().Span);
        }
    }
}