import type { ConnectionOptions, ConnectionState, StreamingMessage, TransportTypes } from '../types';
export interface ReceiveCallback {
    (data: StreamingMessage | StreamingMessage[]): void;
}
export interface StateChangeCallback {
    (nextState: ConnectionState | null): void;
}
export interface StreamingTransportOptions extends ConnectionOptions {
    transportType?: TransportTypes;
    skipNegotiation?: boolean;
}
export interface StreamingTransportInterface {
    stateChangedCallback: (state: ConnectionState) => void;
    start(transportOptions: StreamingTransportOptions, startCallback?: () => void): void;
    stop(hasTransportError?: boolean): void;
    name: string;
    getQuery?(): string | null | undefined | void;
    updateQuery(authToken: string, contextId: string, authExpiry?: number | null, forceAuth?: boolean): void;
    onOrphanFound?(): unknown;
    getTransport?(): StreamingTransportInterface;
    onSubscribeNetworkError?: () => void;
    setReceivedCallback(callback: ReceiveCallback): void;
    setStateChangedCallback(callback: StateChangeCallback): void;
    setUnauthorizedCallback(callback: (url: string) => void): void;
    setConnectionSlowCallback(callback: () => void): void;
    setSubscriptionResetCallback?(callback: () => void): void;
}
export declare type StreamingData = Array<unknown> | Record<string, unknown> | BufferSource | string;