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[
    GarbageCollected,
    constructor(DOMString path, DOMString type)
] interface StorageInfo {
    Promise <bool> isReadOnly();
    Promise <DOMString> getFilesystemType();
    Promise <number> getDeviceSize();
    Promise <StorageDeviceInfo> getDeviceInfo();
    Promise
<StorageStats> getStatistics();
}

interface StorageDeviceInfo {
    attribute number size;

    attribute DOMString productName; //@Optional
    attribute DOMString oemID; //@Optional
    attribute DOMString auSize; //@Optional
    attribute DOMString productRev; //@Optional
    attribute DOMString mfrDate; //@Optional
    attribute DOMString serial; //@Optional
    attribute DOMString signalVoltage; //@Optional
    attribute DOMString uhsMode; //@Optional
    attribute number specVersion; //@Optional
    attribute DOMString speedClass; //@Optional
    attribute number mfrID; //@Optional

    attribute DOMString sataModel; //@Optional
    attribute DOMString sataVendor; //@Optional
}

interface StorageStats {
    attribute number blockSize;
    attribute number sizeBytes;
    attribute number bytesFree;
    attribute number filesUsed;
    attribute number filesFree;
    attribute bool isReadOnly;
}