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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 vequ(v1):
 """ Make one double precision 3-dimensional vector equal to another. http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/vequ_c.html :param v1: 3-dimensional double precision vector. :type v1: 3-Element Array of floats :return: 3-dimensional double precision vector set equal to vin. :rtype: 3-Element Array of floats """

    v1 = stypes.toDoubleVector(v1)
    vout = stypes.emptyDoubleVector(3)
    libspice.vequ_c(v1, vout)
    return stypes.cVectorToPython(vout)