       <td>Uses variable-length encoding.</td>
            <td>uint64</td>
            <td>long</td>
            <td>int/long</td>
            <td>uint64</td>
            <td>ulong</td>
            <td>integer/string</td>
            <td>Bignum or Fixnum (as required)</td>
          </tr>
        
          <tr id="sint32">
            <td>sint32</td>
            <td>Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s.</td>
            <td>int3