refactor(redis_cache.py): use a default cache value when writing to r… (#6358)

* refactor(redis_cache.py): use a default cache value when writing to redis

prevent redis from blowing up in high traffic

* refactor(redis_cache.py): refactor all cache writes to use self.get_ttl

ensures default ttl always used when writing to redis

Prevents redis db from blowing up in prod

litellm/caching/base_cache.py

@@ -8,8 +8,18 @@ Has 4 methods:
     - async_get_cache
 """
 
+from typing import Optional
+
 
 class BaseCache:
+    def __init__(self, default_ttl: int = 60):
+        self.default_ttl = default_ttl
+
+    def get_ttl(self, **kwargs) -> Optional[int]:
+        if kwargs.get("ttl") is not None:
+            return kwargs.get("ttl")
+        return self.default_ttl
+
     def set_cache(self, key, value, **kwargs):
         raise NotImplementedError
 
@@ -22,7 +32,7 @@ class BaseCache:
     async def async_get_cache(self, key, **kwargs):
         raise NotImplementedError
 
-    async def batch_cache_write(self, result, *args, **kwargs):
+    async def batch_cache_write(self, key, value, **kwargs):
         raise NotImplementedError
 
     async def disconnect(self):