public function prepend(Decoding ...$decodings): self
    {
        $copy = clone $this;
        array_unshift($copy->stack, ...$decodings);

        return $copy;
    }
public function prepend(Decoding ...$decodings): self
    {
        $copy = clone $this;
        array_unshift($copy->stack, ...$decodings);

        return $copy;
    }
Return a new instance with the supplied decodings added to the beginning of the stack.

@param Decoding ...$decodings
@return DecodingList