Module utils 

Functions

clamp_price

Clamp a price to be within valid bounds.

is_valid_price

Check if a price is valid for the given tick size.

mid_price

Calculate mid price from best bid and ask.

pick_active_and_next

Active market plus the next one queued behind it, sorted by ascending close time. Useful for zero-downtime rollover: subscribe to both, drop the front one when its close_time passes.

pick_active_market

Pick the currently-active market in a list — Active status with a future close time. When several qualify, returns the one with the soonest close_time (in a rolling series this is the next-to-resolve market — i.e. the one a trader should be subscribed to). Markets without a close_time are treated as still open (Polymarket events occasionally omit it).

round_to_tick_size

Round a price to the nearest valid tick increment.

spread_bps

Calculate spread in basis points.