Initial Python rewrite

src.bak/main/java/com/example/service/llm/LlmResponseTunerService.java

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.llm;
+
+import reactor.core.publisher.Mono;
+
+public interface LlmResponseTunerService {
+    Mono<String> getValue(String key);
+    Mono<Void> setValue(String key, String value);
+}

src.bak/main/java/com/example/service/llm/LlmResponseTunerServiceImpl.java

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+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.service.llm;
+
+import java.time.Duration;
+import org.springframework.data.redis.core.ReactiveRedisTemplate;
+import org.springframework.stereotype.Service;
+import reactor.core.publisher.Mono;
+
+@Service
+public class LlmResponseTunerServiceImpl implements LlmResponseTunerService {
+
+    private final ReactiveRedisTemplate<String, String> reactiveStringRedisTemplate;
+    private final String llmPreResponseCollectionName = "llm-pre-response:";
+    private final Duration ttl = Duration.ofHours(1);
+
+    public LlmResponseTunerServiceImpl(ReactiveRedisTemplate<String, String> reactiveStringRedisTemplate) {
+        this.reactiveStringRedisTemplate = reactiveStringRedisTemplate;
+    }
+
+    @Override
+    public Mono<String> getValue(String key) {
+        return reactiveStringRedisTemplate.opsForValue().get(llmPreResponseCollectionName + key);
+    }
+
+    @Override
+    public Mono<Void> setValue(String key, String value) {
+        return reactiveStringRedisTemplate.opsForValue().set(llmPreResponseCollectionName + key, value, ttl).then();
+    }
+}