async def async_create_index(self, overwrite: Optional[bool] = None) -> None:
        """Create an async index in Redis."""
        if overwrite is None:
            overwrite = self._overwrite
        # Create index honoring overwrite policy
        if overwrite:
            await self._async_index.create(overwrite=True, drop=True)
        else:
            await self._async_index.create()
        self.created_async_index = True
Create an async index in Redis.
llama-index-integrations/vector_stores/llama-index-vector-stores-redis/llama_index/vector_stores/redis/base.py