code: def dskn02(handle, dladsc, plid):
      
      handle = ctypes.c_int(handle)
      plid   = ctypes.c_int(plid)
      normal = stypes.emptyDoubleVector(3)
      libspice.dskn02_c(handle, dladsc, plid, normal)
      return stypes.cVectorToPython(normal)
docs: Compute the unit normal vector for a specified plate from a type
      2 DSK segment.
  
      https://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/dskn02_c.html
  
      :param handle: DSK file handle.
      :type handle: int
      :param dladsc: DLA descriptor.
      :type dladsc: spiceypy.utils.support_types.SpiceDLADescr
      :param plid: Plate ID.
      :type plid: int
      :return: late's unit normal vector.
      :rtype: 3-Element Array of floats.