public PutReportDefinitionRequest withFormat(Format format) {
        this.format = format.toString();
        return this;
    }
<p>
Required. The format to use for the generated report.
</p>

@param format
       Required. The format to use for the generated report.
@return Returns a reference to this object so that method calls can be chained together.
@see Format
aws-java-sdk-applicationcostprofiler/src/main/java/com/amazonaws/services/applicationcostprofiler/model/PutReportDefinitionRequest.java