Argument checking for the whole of trx.
trx.api.strict(enabled)
Turns argument checking on or off for every function in trx, and for the
methods on its handles. Off by default: checking costs a couple of hundred
nanoseconds a call, which a per-frame handler notices. Turn it on while
writing a level, and leave it off in play.
Parameters:
Example:
trx.api.strict(true)
trx.api.is_strict()
Whether argument checking is on.
Returns: boolean. False as the game starts, and true once something turns it on.