public void setHeartbeatFrequency(Integer heartbeatFrequency) {
        this.heartbeatFrequency = heartbeatFrequency;
    }
<p>
Sets the WAL heartbeat frequency (in minutes).
</p>

@param heartbeatFrequency
       Sets the WAL heartbeat frequency (in minutes).
aws-java-sdk-dms/src/main/java/com/amazonaws/services/databasemigrationservice/model/PostgreSQLSettings.java