import Node from './../type/node';
import Adapter from './../interface/adapter';
import FieldValue from './../type/field-value';
declare class MemoryAdapter implements Adapter {
    private node_cache;
    private account_ids;
    constructor();
    fetchNode(node_key: string): Promise<Node | undefined>;
    storeNode(node_key: string, node: Node): Promise<Node>;
    setField(node_key: string, field_key: string, field_value: FieldValue): Promise<Node>;
    fetchAccountId(username: string, password: string): Promise<string | undefined>;
    storeAccountId(username: string, password: string, account_id: string): Promise<void>;
    private fetchNodeUnsafe;
    private getNodeCache;
    private getAccountIds;
}
export default MemoryAdapter;