1{ 2 "openapi": "3.0.4", 3 "info": { 4 "title": "OpenAPI 3.0.4 additional properties undefined example", 5 "version": "1" 6 }, 7 "components": { 8 "schemas": { 9 "Foo": { 10 "properties": { 11 "foo": { 12 "type": "object" 13 } 14 }, 15 "required": ["foo"], 16 "type": "object" 17 } 18 } 19 } 20}