if x >= 1000 {
		break
	}
	fmt.Printf("%d ", x)
}
// output: 0 1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987

// iteration support for a recursive tree data structure
type Tree[K cmp.Ordered, V any] struct {
	left, right *Tree[K, V]
	key         K
	value       V
}

func (t *Tree[K, V]) walk(yield func(key K, val V) bool) bool {

pkg math/big, method (*Int) Bit(int) uint
pkg math/big, method (*Int) BitLen() int
pkg math/big, method (*Int) Bits() []Word
pkg math/big, method (*Int) Bytes() []uint8
pkg math/big, method (*Int) Cmp(*Int) int
pkg math/big, method (*Int) Div(*Int, *Int) *Int
pkg math/big, method (*Int) DivMod(*Int, *Int, *Int) (*Int, *Int)
pkg math/big, method (*Int) Exp(*Int, *Int, *Int) *Int

   END OF TERMS AND CONDITIONS

================================================================

github.com/google/go-cmp
https://github.com/google/go-cmp
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