src/RichMessage/Suggestion.php
public function reply($reply)
    {
        if (is_string($reply)) {
            $this->replies = [$reply];
        } elseif (is_array($reply)) {
            $this->replies = $reply;
        }

        return $this;
    }
public function reply($reply)
    {
        if (is_string($reply)) {
            $this->replies = [$reply];
        } elseif (is_array($reply)) {
            $this->replies = $reply;
        }

        return $this;
    }
Set the reply for a Suggestion.

@param string|array $reply