Trigger variable market status

what is the variable to use in the trigger editor to get the status of the market? Idle, in-play, etc ...

market_inplay?

Quoting from the manual:

market_inplay, integer. An index of the market's status. 0 - Idle, 1 - In-running, -1 - Suspended, 2 - Finished, 3 - Settled (profit/loss calculated and transferred to/from your account).