{"$schema":"http://json-schema.org/draft-07/schema#","$id":"http://jsonlogic.com/schemas/operators/accessor/missing.json","title":"missing","description":"Takes an array of data keys to search for (same format as var). Returns an array of any keys that are missing from the data object, or an empty array.","type":"object","additionalProperties":false,"required":["missing"],"properties":{"missing":{"$ref":"http://jsonlogic.com/schemas/common/var.json"}},"examples":[{"missing":["a","b"]},{"if":[{"missing":["a","b"]},"'a' and/or 'b' are missing","OK to proceed"]}]}