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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 cfset_to_set(cfset):
 """Convert CFSet to python set."""

    count = cf.CFSetGetCount(cfset)
    buffer = (c_void_p * count)()
    cf.CFSetGetValues(cfset, byref(buffer))
    return set([cftype_to_value(c_void_p(buffer[i])) for i in range(count)])