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isIPoint4
#########

.. js:function:: isIPoint4

   .. rst-class:: sig-pretty-signature
   
      | isIPoint4(**o**\ : *unknown*\ ): o *is* :js:class:`~IPoint4`
   
   **Parameters**
   
      **o**\ : *unknown*
   
   
   **Returns**\ : o *is* :js:class:`~IPoint4`
   




