declare namespace Cypress {
    interface Chainable<Subject> {
        clearIndexedDb(databaseName: string): void;
        openIndexedDb(databaseName: string, version?: number): Chainable<IDBDatabase>;
        getIndexedDb(databaseName: string): Chainable<IDBDatabase>;
        createObjectStore(storeName: string, options?: IDBObjectStoreParameters): Chainable<IDBObjectStore>;
        getStore(storeName: string): Chainable<IDBObjectStore>;
        createItem(key: string, value: unknown): Chainable<IDBObjectStore>;
        readItem<T = unknown>(key: IDBValidKey | IDBKeyRange): Chainable<T>;
        updateItem(key: string, value: unknown): Chainable<IDBObjectStore>;
        deleteItem(key: string): Chainable<IDBObjectStore>;
        addItem<T = unknown>(value: T): Chainable<IDBObjectStore>;
        keys(): Chainable<IDBValidKey[]>;
        entries<T = unknown>(): Chainable<T[]>;
    }
}