How to write large amount of tuples? (.NET)

[Nizio-Dev]

Hello. I'm trying to save around 560 000 tuples. I tried to do it in 1 query - The limit for GRPC message limit has been hit and i can't seem to set it in settings. Then i tried splitting the queries into 1000 writes per request. This is pseudocode of what i'm doing right now:

var chunks = lotsOfTuples.Chunk(1000);

foreach(var chunk in chunks)
{
  await client.WriteTupleAsync(chunk);
}

The problem i'm getting is that there are duplicate tuples being written, despite there being none.