Table:
text: List of Wellington railway stations
Current stations
Current stations
Station Metlink_code Lines_ Services Serves km_from_Wellington Fare_zones Opened
Awarua Street AWAR Johnsonville Line Johnsonville Ngaio 6.0 3 2 Cannot handle non-empty timestamp argument! 1938
Carterton CART Wairarapa Line Wairarapa Connection Carterton 76.6 13 1 Cannot handle non-empty timestamp argument! 1880
Epuni EPUN Wairarapa Line Hutt Valley Epuni , Boulcott 16.5 5 7 Cannot handle non-empty timestamp argument! 1946
Heretaunga HERE Wairarapa Line Hutt Valley Heretaunga 28.2 6 1908
Kenepuru KENE North Island Main Trunk Kapiti Kenepuru , Linden 16.2 5 8 Cannot handle non-empty timestamp argument! 1963
Mana [d ] MANA North Island Main Trunk Kapiti Mana 23.2 6 5 Cannot handle non-empty timestamp argument! 1949

Question: What is the Metlink code opened in 1908 under the list of railway stations in Wellington?