{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://offeringprotocol.org/schemas/filter-operator.schema.json",
  "title": "ODP filter operator",
  "enum": [
    "eq",
    "in",
    "lt",
    "lte",
    "gt",
    "gte",
    "exists"
  ]
}