public String getNextToken() {
        return this.nextToken;
    }
<p>
A unique pagination token that can be used in a subsequent request. Receiving <code>NextToken</code> in your
response inticates that there is more data that can be returned. To receive the data, make another
<code>ListNamespaces</code> API call with the returned token to retrieve the next page of data. Each token is
valid for 24 hours. If you try to make a <code>ListNamespaces</code> API call with an expired token, you will
receive a <code>HTTP 400 InvalidNextTokenException</code> error.
</p>

@return A unique pagination token that can be used in a subsequent request. Receiving <code>NextToken</code> in
        your response inticates that there is more data that can be returned. To receive the data, make another
        <code>ListNamespaces</code> API call with the returned token to retrieve the next page of data. Each
        token is valid for 24 hours. If you try to make a <code>ListNamespaces</code> API call with an expired
        token, you will receive a <code>HTTP 400 InvalidNextTokenException</code> error.
aws-java-sdk-quicksight/src/main/java/com/amazonaws/services/quicksight/model/ListNamespacesResult.java