{ "$schema": "http://json-schema.org/draft-07/schema#", "title": "Array_of_Tuple_of_String_and_Uint256", "type": "array", "items": { "type": "array", "items": [ { "type": "string" }, { "$ref": "#/definitions/Uint256" } ], "maxItems": 2, "minItems": 2 }, "definitions": { "Uint256": { "type": "string" } } }