public ChatClient init(final String ruleId, final ChatModel chatModel) {
        ChatClient chatClient = ChatClient.builder(chatModel).build();
        CHAT_CLIENT_MAP.put(ruleId, chatClient);
        return chatClient;
    }
Init.

@param ruleId the ruleId
@param chatModel the chatModel
@return chatClient the chatClient
shenyu-plugin/shenyu-plugin-ai/shenyu-plugin-ai-request-transformer/src/main/java/org/apache/shenyu/plugin/ai/transformer/request/cache/ChatClientCache.java