public Integer getSeasonality() {
        return this.seasonality;
    }
<p>
The seasonality setup of a forecast computation. Choose one of the following options:
</p>
<ul>
<li>
<p>
<code>NULL</code>: The input is set to <code>NULL</code>.
</p>
</li>
<li>
<p>
<code>NON_NULL</code>: The input is set to a custom value.
</p>
</li>
</ul>

@return The seasonality setup of a forecast computation. Choose one of the following options:</p>
        <ul>
        <li>
        <p>
        <code>NULL</code>: The input is set to <code>NULL</code>.
        </p>
        </li>
        <li>
        <p>
        <code>NON_NULL</code>: The input is set to a custom value.
        </p>
        </li>
aws-java-sdk-quicksight/src/main/java/com/amazonaws/services/quicksight/model/TimeBasedForecastProperties.java