public void setSeasonality(Integer seasonality) {
        this.seasonality = 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>

@param seasonality
       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