{ "type":"object", "required":true, "properties":{ "command": { "type" : "string", "required" : true, "enum" : ["instance-data"] }, "subcommand" : { "type" : "string", "required" : true, "enum" : ["getImageSnapshot","getLedSnapshot"] }, "instance" : { "type": "integer", "minimum": 0, "maximum": 255 }, "filetype" : { "type" : "string", "enum" : ["BMP","JPG","PNG"] }, "tan" : { "type" : "integer" } }, "additionalProperties": false }