public String getStart() {
        return this.start;
    }
<p>
The beginning of the time period. The start date is inclusive. For example, if <code>start</code> is
<code>2017-01-01</code>, Amazon Web Services retrieves cost and usage data starting at <code>2017-01-01</code> up
to the end date. The start date must be equal to or no later than the current date to avoid a validation error.
</p>

@return The beginning of the time period. The start date is inclusive. For example, if <code>start</code> is
        <code>2017-01-01</code>, Amazon Web Services retrieves cost and usage data starting at
        <code>2017-01-01</code> up to the end date. The start date must be equal to or no later than the current
        date to avoid a validation error.
aws-java-sdk-costexplorer/src/main/java/com/amazonaws/services/costexplorer/model/DateInterval.java