What does it mean when a maneki-neko has both hands up?

Excuse me, could you elaborate on the significance of a maneki-neko figurine with both hands raised? I've heard that these charming cats are believed to bring good fortune, but I'm particularly intrigued by the symbolism behind their gesture. Does it signify a specific type of prosperity or have a unique meaning within Japanese culture? I'd appreciate any insights you might have on this topic.