"Get" suggests accessing something that is already there. We, instead, want to create a new file. writeFile is one option we could discuss. We could also consider specific functions like writeCSV. Consider python idioms and other precedence (e.g. python uses "write"). There's also a similarity with our asX functions for transforming a Dataset into a different in-memory data structure. Transforming a Dataset into a file is a similar concept which might suggest some consistent API decisions.