he index is already occupied
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<a name="toString()"></a>
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<td class="detailHeaderName">toString</td><td class="detailHeaderParens">()</td><td class="detailHeaderType">method</td><td class="detailHeaderRule">&nbsp;</td>
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<code>public function toString():String</code><p>
   Returns a string representation of this geometry.
      </p><p>The string contins the lengths of the array