import { IAccumulatorState, IKBUniversalAccumulatorState, IUniversalAccumulatorState } from './IAccumulatorState';
import { IInitialElementsStore } from './IInitialElementsStore';
/**
 * In memory implementation of the state. For testing only
 */
export declare class InMemoryState implements IAccumulatorState {
    state: Set<string>;
    constructor();
    get size(): number;
    add(element: Uint8Array): Promise<void>;
    remove(element: Uint8Array): Promise<void>;
    has(element: Uint8Array): Promise<boolean>;
    static key(element: Uint8Array): string;
}
export declare class InMemoryUniversalState extends InMemoryState implements IUniversalAccumulatorState {
    elements(): Promise<Iterable<Uint8Array>>;
}
export declare class InMemoryInitialElementsStore implements IInitialElementsStore {
    store: Set<string>;
    constructor();
    add(element: Uint8Array): Promise<void>;
    has(element: Uint8Array): Promise<boolean>;
    static key(element: Uint8Array): string;
}
/**
 * In memory implementation of the state. For testing only
 */
export declare class InMemoryKBUniversalState implements IKBUniversalAccumulatorState {
    memState: Set<string>;
    nonMemState: Set<string>;
    constructor();
    get size(): number;
    add(element: Uint8Array): Promise<void>;
    has(element: Uint8Array): Promise<boolean>;
    remove(element: Uint8Array): Promise<void>;
    static key(element: Uint8Array): string;
    inDomain(element: Uint8Array): Promise<boolean>;
    addToDomain(element: Uint8Array): Promise<void>;
}
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