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fix possible nil
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@ -69,6 +69,9 @@ func (t *TTL) ToBytes(output []byte) {
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}
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func (t *TTL) ToUint32() (output uint32) {
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if t == nil || t.Count == 0 {
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return 0
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}
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output = uint32(t.Count) << 8
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output += uint32(t.Unit)
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return output
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