public DescribeFileSystemsResult withMarker(String marker) {
        setMarker(marker);
        return this;
    }
<p>
Present if provided by caller in the request (String).
</p>

@param marker
       Present if provided by caller in the request (String).
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-efs/src/main/java/com/amazonaws/services/elasticfilesystem/model/DescribeFileSystemsResult.java