interface WithBytesSize {
    readonly bytesSize: number;
}
export interface ItemToAdd {
    readonly content: string;
    readonly timestamp: string;
}
export interface QueuedItemWeb extends ItemToAdd, WithBytesSize {
    readonly id: number;
    readonly key?: never;
}
export interface QueuedItemNative extends ItemToAdd, WithBytesSize {
    readonly id?: never;
    readonly key: string;
}
export type QueuedItem = QueuedItemWeb | QueuedItemNative;
export interface AddItemWithAuthPropertiesWeb extends ItemToAdd, WithBytesSize {
}
export interface AddItemWithAuthPropertiesNative extends ItemToAdd, WithBytesSize {
    key: QueuedItemNative['key'];
}
export interface QueuedStorage {
    add(item: ItemToAdd, options?: {
        dequeueBeforeEnqueue: boolean;
    }): Promise<void>;
    peek(n?: number): Promise<QueuedItem[]>;
    peekAll(): Promise<QueuedItem[]>;
    delete(items: QueuedItem[]): Promise<void>;
    clear(): Promise<void>;
    isFull(maxBytesSizeInMiB: number): boolean;
}
export {};