public void setMarker(String marker) {
        this.marker = marker;
    }
<p>
An optional pagination token provided if the number of records retrieved is greater than <code>MaxRecords</code>.
If this parameter is specified, the marker specifies the next record in the list. Including the value of
<code>Marker</code> in the next call to <code>DescribeCertificates</code> results in the next page of
certificates.
</p>

@param marker
       An optional pagination token provided if the number of records retrieved is greater than
       <code>MaxRecords</code>. If this parameter is specified, the marker specifies the next record in the list.
       Including the value of <code>Marker</code> in the next call to <code>DescribeCertificates</code> results
       in the next page of certificates.
aws-java-sdk-docdb/src/main/java/com/amazonaws/services/docdb/model/DescribeCertificatesResult.java