Definition
Web Bluetooth defines BluetoothCharacteristicProperties
[Exposed=Window, SecureContext]
interface BluetoothCharacteristicProperties {
readonly attribute boolean broadcast;
readonly attribute boolean read;
readonly attribute boolean writeWithoutResponse;
readonly attribute boolean write;
readonly attribute boolean notify;
readonly attribute boolean indicate;
readonly attribute boolean authenticatedSignedWrites;
readonly attribute boolean reliableWrite;
readonly attribute boolean writableAuxiliaries;
};