匿名インターフェイスの実装は Go で実現できますか?

RandomNumOp({
   Binary: func(a, b int) int { return a + b },
   Ternary: func(a, b, c int) int { return a + b + c },
})

type DummyOp struct{}

func (DummyOp) Binary(_, _ int) int     { return 0 }
func (DummyOp) Ternary(_, _, _ int) int { return 0 }

type CustomOp struct {
    binary  func(int, int) int
    ternary func(int, int, int) int
}

func (cop CustomOp) Binary(a, b int) int {
    if cop.binary != nil {
        return cop.binary(a, b)
    }
    return 0
}

func (cop CustomOp) Ternary(a, b, c int) int {
    if cop.ternary != nil {
        return cop.ternary(a, b, c)
    }
    return 0
}

RandomNumOp(CustomOp{
    binary: func(a, b int) int { return a + b },
})

var op NumOp = struct{ NumOp }{}