This method will be called when loading the game from a save file. Specifying the load method alone is not enough to make the game load whatever mod data you might need loading. For that, look into game.addLoadComponent.
If no data was saved previously (ie. loading an existing save file after installing a new mod) this method will not be called.
local saveData = loadedData.myModData
if saveData then
self.someVarOne = loadedData.myModData.someDataOne
self.someVarTwo = data.someDataTwo