Package for Dutch Smart Meters which comply to DSMR (Dutch Smart Meter Requirements), also known as ‘Slimme meter’ or ‘P1 poort’. Support parsing DSMR V2.2 and V4. For official information about DSMR refer to: http://www.netbeheernederland.nl/themas/hotspot/hotspot-documenten/?dossierid=11010056&title=Slimme%20meter&onderdeel=Documenten