def get(self, key: str) -> Optional[Any]:
        """Retrieves a value from the store by its key.

        Args:
            key: the key to retrieve the value for

        Returns:
            the value stored under the given key, or None if not found
        """
        key_doc = self._store_service.get_key(self.store_name, key)
        if key_doc is None:
            return None
        return key_doc.value
Retrieves a value from the store by its key.

        Args:
            key: the key to retrieve the value for

        Returns:
            the value stored under the given key, or None if not found
        
fiftyone/operators/store/store.py