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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 get_kvm_archs():
 """ Gets a list of architectures for which KVM is available on this server. :returns: List of architectures for which KVM is available on this server. """

        kvm = []

        if not os.path.exists("/dev/kvm"):
            return kvm

        arch = platform.machine()
        if arch == "x86_64":
            kvm.append("x86_64")
            kvm.append("i386")
        elif arch == "i386":
            kvm.append("i386")
        else:
            kvm.append(platform.machine())
        return kvm