You have been invited to ...
I know that this is being heard in an appeals court and there are (usually) no additional depositions, witnesses, nor testimony at this stage of the litigation process. There may be an exception in light of his unilateral motions for material removal of consumer protections of which this lawsuit is about.
For once I would like the appeals court to compel Ajit Pai to attend this court proceeding in person and compel him to answer some very pointed questions. At least make him a target vulnerable to some contempt of court proceedings if the judges don't like his answers.