I am using the documentation
// Instantiate a FibonacciRetracements object
FibonacciRetracements myFibRet = Draw.FibonacciRet racements(this, "tag1", true, 10, Low[10], 0, High[0]);
// Set the object's lines to extend to the right
myFibRet.IsExtendedLinesRight = true;
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