code: @Override
      public Blob convert(INDArray toConvert) throws SQLException {
          ByteBuffer byteBuffer = BinarySerde.toByteBuffer(toConvert);
          Buffer buffer = (Buffer) byteBuffer;
          buffer.rewind();
          byte[] arr = new byte[byteBuffer.capacity()];
          byteBuffer.get(arr);
          Connection c = dataSource.getConnection();
          Blob b = c.createBlob();
          b.setBytes(1, arr);
          return b;
      }
docs: Convert an ndarray to a blob
  
  @param toConvert the ndarray to convert
  @return the converted ndarray