void WriteContentHeaderFrame(ref CustomBufferWriter <PipeWriter> writer, MessageProperties properties, ulong length)
{
var payloadSizeHeader = writer.WriteFrameHeader(FrameType.ContentHeader, channelNumber);
writer.Commit();
var bytesWrittenBefore = (uint)writer.BytesCommitted;
writer.Write(ClassId.Basic);
writer.Write(Reserved);
writer.Write(Reserved);
writer.Write(length);
writer.WriteBasicProperties(properties);
writer.Commit();
BinaryPrimitives.WriteUInt32BigEndian(payloadSizeHeader, ((uint)writer.BytesCommitted - bytesWrittenBefore));
writer.Write(FrameEnd);
}