import * as aws from 'aws-sdk';
export declare enum Mode {
    ForReading = 0,
    ForWriting = 1
}
/**
 */
export interface CredentialProviderSource {
    name: string;
    /**
     * Whether the credential provider is even online
     *
     * Guaranteed to be called before any of the other functions are called.
     */
    isAvailable(): Promise<boolean>;
    /**
     * Whether the credential provider can provide credentials for the given account.
     */
    canProvideCredentials(accountId: string): Promise<boolean>;
    /**
     * Construct a credential provider for the given account and the given access mode
     *
     * Guaranteed to be called only if canProvideCredentails() returned true at some point.
     */
    getProvider(accountId: string, mode: Mode): Promise<aws.Credentials>;
}