Before building a script, you must understand the basics of Codex profiles. You can find all the information about Codex and the profiles here.
Basics
Sending a .srt file for translation doesn't require any specific parameters. Simply generate a new SRT script inside your Codex repository and leave all its parameters empty:
selectionPathList = [] contextsPath = [] groupingPaths = [] contentNames = [] groupingPathNames = [] targetInjections = [] targetInjectionsRange = []