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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def stelab(pobj, vobs):
 """ Correct the apparent position of an object for stellar aberration. http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/stelab_c.html :param pobj: Position of an object with respect to the observer. :type pobj: 3-Element Array of floats :param vobs: Velocity of the observer with respect to the Solar System barycenter. :type vobs: 3-Element Array of floats :return: Apparent position of the object with respect to the observer, corrected for stellar aberration. :rtype: 3-Element Array of floats """

    pobj = stypes.toDoubleVector(pobj)
    vobs = stypes.toDoubleVector(vobs)
    appobj = stypes.emptyDoubleVector(3)
    libspice.stelab_c(pobj, vobs, appobj)
    return stypes.cVectorToPython(appobj)