able=attr&amp;block_id=4&amp;version="><b>uint</b></a></td>
<td></td>
<td></td>

<td></td>
<td></td>
<td>Number of keys in the array.</td>
<td>Any</td><td>Any</td></tr>
<tr class="reg1">
<td><i>Interpolation</i></td>
<td><a href="index.php?mode=list&amp;table=attr&amp;block_id=378&amp;version="><b>KeyType</b></a></td>
<td></td>
<td></td>
<td></td>
<td><i>Num Keys</i> != 0</td>

<td>The key type.</td>
<td>Any</td><td>Any</td></tr>
<tr class="reg0">
<td><i>Keys</i></td>
<td><a href="index.php?mode=list&amp;ta