public ExportJobSummary withExportSourceType(ExportSourceType exportSourceType) {
        this.exportSourceType = exportSourceType.toString();
        return this;
    }
<p>
The source type of the export job.
</p>

@param exportSourceType
       The source type of the export job.
@return Returns a reference to this object so that method calls can be chained together.
@see ExportSourceType
aws-java-sdk-sesv2/src/main/java/com/amazonaws/services/simpleemailv2/model/ExportJobSummary.java