code: def spksub(handle, descr, identin, begin, end, newh):
      
      assert len(descr) is 5
      handle = ctypes.c_int(handle)
      descr = stypes.toDoubleVector(descr)
      identin = stypes.stringToCharP(identin)
      begin = ctypes.c_double(begin)
      end = ctypes.c_double(end)
      newh = ctypes.c_int(newh)
      libspice.spksub_c(handle, descr, identin, begin, end, newh)
docs: Extract a subset of the data in an SPK segment into a
      separate segment.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/spksub_c.html
  
      :param handle: Handle of source segment.
      :type handle: int
      :param descr: Descriptor of source segment.
      :type descr: 5-Element Array of floats
      :param identin: Indentifier of source segment.
      :type identin: str
      :param begin: Beginning (initial epoch) of subset.
      :type begin: int
      :param end: End (fincal epoch) of subset.
      :type end: int
      :param newh: Handle of new segment.
      :type newh: int