{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "https://api-evangelist.github.io/deribit/json-schema/tick_direction.json", "title": "Tick Direction", "enum": [ 0, 1, 2, 3 ], "type": "integer", "description": "Direction of the \"tick\" (`0` = Plus Tick, `1` = Zero-Plus Tick, `2` = Minus Tick, `3` = Zero-Minus Tick)." }