import { Endpoint } from "./http";
import {
  FinalizeHandler,
  FinalizeHandlerArguments,
  FinalizeHandlerOutput,
} from "./middleware";
import { MetadataBearer } from "./response";
export interface Encoder {
  (input: Uint8Array): string;
}
export interface Decoder {
  (input: string): Uint8Array;
}
export interface Provider<T> {
  (): Promise<T>;
}
export interface MemoizedProvider<T> {
  (options?: { forceRefresh?: boolean }): Promise<T>;
}
export interface BodyLengthCalculator {
  (body: any): number | undefined;
}
export interface RetryStrategy {
  mode?: string;
  retry: <Input extends object, Output extends MetadataBearer>(
    next: FinalizeHandler<Input, Output>,
    args: FinalizeHandlerArguments<Input>
  ) => Promise<FinalizeHandlerOutput<Output>>;
}
export interface UrlParser {
  (url: string | URL): Endpoint;
}
export interface RegionInfo {
  hostname: string;
  partition: string;
  path?: string;
  signingService?: string;
  signingRegion?: string;
}
export interface RegionInfoProviderOptions {
  useDualstackEndpoint: boolean;
  useFipsEndpoint: boolean;
}
export interface RegionInfoProvider {
  (region: string, options?: RegionInfoProviderOptions): Promise<
    RegionInfo | undefined
  >;
}
export declare type UserAgentPair = [string, string];
export declare type UserAgent = UserAgentPair[];
