<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def vupack(v):
 """ Unpack three scalar components from a vector. http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/vupack_c.html :param v: Vector :type v: 3-Element Array of floats :return: (x, y, z) :rtype: tuple """

    v1 = stypes.toDoubleVector(v)
    x = ctypes.c_double()
    y = ctypes.c_double()
    z = ctypes.c_double()
    libspice.vupack_c(v1, ctypes.byref(x), ctypes.byref(y), ctypes.byref(z))
    return x.value, y.value, z.value