# Render `self` as a CsvDocument record
	fun to_csv_record(keys: ArraySet[String]): Array[String] do
		var record = new Array[String]
		record.add mpackage.full_name
		for key in keys do
			if key == keys.first then continue
			var value = if self.has_key(key) then self[key] else 0
			record.add value.to_s
		end
		return record
	end