func (f binaryRecordFormatV0) writeDecimal(w *rw.Writer, o interface{}) {
var d orient.Decimal
switch v := o.(type) {
case int64:
d = orient.Decimal{Value: big.NewInt(v)}
case *big.Int:
d = orient.Decimal{Value: v}
case orient.Decimal:
d = v
default:
panic(orient.ErrTypeSerialization{Val: o, Serializer: f})
}
w.WriteInt(int32(d.Scale)) // scale value, 0 for ints
w.WriteBytes(d.Value.Bytes()) // unscaled value
}