public String getNextToken() {
        return this.nextToken;
    }
<p>
An optional argument to pass in case the total number of records exceeds the value of MaxResults. If nextToken is
returned, there are more results available. The value of nextToken is a unique pagination token for each page.
Make the call again using the returned token to retrieve the next page. Keep all other arguments unchanged.
</p>

@return An optional argument to pass in case the total number of records exceeds the value of MaxResults. If
        nextToken is returned, there are more results available. The value of nextToken is a unique pagination
        token for each page. Make the call again using the returned token to retrieve the next page. Keep all
        other arguments unchanged.
aws-java-sdk-memorydb/src/main/java/com/amazonaws/services/memorydb/model/DescribeParameterGroupsResult.java