How to use where in condition in dynamodb filterexpression

Question

I am learning dynamodb and I am trying how to fetch items with status 0 and 1 but when i write the below query, it is throwing error "Error ValidationException: Invalid FilterExpression: Syntax error; token: ":user_status_val", near: "IN :user_status_val". Could any one please help in fixing this issue.

const checkUserExists = (req) => {
    return new Promise((resolve,reject) =>{
        var searchParams = {};
        if(req.body.email != ""){
             searchParams = {
                FilterExpression : "#email = :e AND #user_status IN :user_status_val",
                 ExpressionAttributeNames: {
                    "#user_status": "status",
                    "#email" : "email",
                  },
                ExpressionAttributeValues: {
                     ':user_status_val' : req.body.status,
                     ':e' : req.body.email,
                    },
            }
        }
        var params = {
                Select: "COUNT",
                TableName: 'register'
            };
        var finalParams = {...searchParams, ...params}
            DynamoDB.scan(finalParams, function(err, data) {
              if (err) {
                console.log("Error", err);
              } else {
                console.log(data);
                //res.send(data);
                return resolve(data);
              }
            });
    });
}