import type { BrowserTypes, GetAgentLogLevels } from '@finos/fdc3';
import { LogLevel } from '@finos/fdc3';
import { FullyQualifiedAppIdentifier, HandshakeMessage, IProxyIncomingMessageEnvelope, IProxyMessagingProvider, Message, RequestMessage, ResponseMessage } from '../contracts.js';
/**
 * Base class for anything that needs to send and receive request and response messages
 */
export declare abstract class MessagingBase {
    protected readonly appIdentifier: FullyQualifiedAppIdentifier;
    protected readonly messagingProvider: IProxyMessagingProvider;
    protected readonly logLevels?: GetAgentLogLevels | undefined;
    protected readonly incomingMessageCallbacks: Map<string, (value: Message) => void>;
    protected readonly log: (message: string, level?: LogLevel, ...optionalParams: any[]) => void;
    constructor(appIdentifier: FullyQualifiedAppIdentifier, messagingProvider: IProxyMessagingProvider, logLevels?: GetAgentLogLevels | undefined);
    protected getResponse<T extends ResponseMessage>(requestMessage: RequestMessage, responseTypeCheck: (value: Message) => value is T): Promise<T>;
    protected publishRequestMessage(message: RequestMessage): Promise<void>;
    protected awaitMessage<T extends BrowserTypes.AppRequestMessage | BrowserTypes.AgentResponseMessage | HandshakeMessage>(typeCheck: (value: any) => value is T): Promise<T>;
    protected awaitRequestUuid<T extends BrowserTypes.AppRequestMessage | BrowserTypes.AgentResponseMessage>(responseTypeCheck: (value: any) => value is T, requestUuid: string): Promise<T>;
    protected addMessageCallback(callbackUuid: string, messageCallback: (value: Message) => void): Promise<void>;
    protected removeMessageCallback(callbackUuid: string): Promise<void>;
    protected onMessage(envelope: IProxyIncomingMessageEnvelope): void;
    private subscribeToMessages;
}