# SDIFFSTORE

> Write the difference between sets to a new set

## Arguments

<ParamField body="destination" type="str" required>
  The key of the set to store the resulting set in.
</ParamField>


<ParamField body="keys" type="*List[str]" required>
  The keys of the sets to perform the difference operation on.
</ParamField>


## Response

<ResponseField type="int" required>
  The number of elements in the resulting set.
</ResponseField>

<RequestExample>
```py Example 
redis.sadd("key1", "a", "b", "c")

redis.sadd("key2", "c", "d", "e")

# Store the result in a new set
assert redis.sdiffstore("res", "key1", "key2") == 2

assert redis.smembers("set") == {"a", "b"}
```

</RequestExample>