import { SimpleFallbackJsonRpcBatchProvider } from '../provider/simple-fallback-json-rpc-batch-provider';
import { AllProvidersFailedError } from '../error';
import { ExtendedJsonRpcBatchProvider, JsonRpcRequest } from '../provider/extended-json-rpc-batch-provider';
export declare type FallbackProviderRequestFailedAllEvent = {
    action: 'fallback-provider:request:failed:all';
    provider: SimpleFallbackJsonRpcBatchProvider;
    error: AllProvidersFailedError;
};
export declare type FallbackProviderRequestNonRetryableErrorEvent = {
    action: 'fallback-provider:request:non-retryable-error';
    provider: SimpleFallbackJsonRpcBatchProvider;
    error: Error | unknown;
};
export declare type FallbackProviderRequestEvent = {
    action: 'fallback-provider:request';
    provider: SimpleFallbackJsonRpcBatchProvider;
    activeFallbackProviderIndex: number;
    fallbackProvidersCount: number;
    domain: string;
    retryAttempt: number;
};
export declare type ProviderResponseBatchedErrorEvent = {
    action: 'provider:response-batched:error';
    error: Error;
    request: JsonRpcRequest[];
    provider: ExtendedJsonRpcBatchProvider;
    domain: string;
};
export declare type ProviderResponseBatchedEvent = {
    action: 'provider:response-batched';
    request: JsonRpcRequest[];
    provider: ExtendedJsonRpcBatchProvider;
    domain: string;
};
export declare type ProviderRequestBatchedEvent = {
    action: 'provider:request-batched';
    request: JsonRpcRequest[];
    provider: ExtendedJsonRpcBatchProvider;
    domain: string;
};
export declare type ProviderEvents = ProviderRequestBatchedEvent | ProviderResponseBatchedEvent | ProviderResponseBatchedErrorEvent;
export declare type FallbackProviderEvents = ProviderEvents | FallbackProviderRequestEvent | FallbackProviderRequestNonRetryableErrorEvent | FallbackProviderRequestFailedAllEvent;