code: def vaddg(v1, v2, ndim):
      
      v1 = stypes.toDoubleVector(v1)
      v2 = stypes.toDoubleVector(v2)
      vout = stypes.emptyDoubleVector(ndim)
      ndim = ctypes.c_int(ndim)
      libspice.vaddg_c(v1, v2, ndim, vout)
      return stypes.cVectorToPython(vout)
docs: Add two n-dimensional vectors
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/vaddg_c.html
  
      :param v1: First vector to be added. 
      :type v1: list[ndim]
      :param v2: Second vector to be added. 
      :type v2: list[ndim]
      :param ndim: Dimension of v1 and v2. 
      :type ndim: int
      :return: v1+v2
      :rtype: list[ndim]