import type { S2RequestOptions } from "../../../../common.js";
import type { Client } from "../../../../generated/client/index.js";
import type * as Types from "../../../../types.js";
import type { ReadArgs, ReadBatch } from "../../types.js";
type RequestOptionsWithHeaders = S2RequestOptions & {
    headers?: Record<string, string>;
};
export declare function streamRead<Format extends "string" | "bytes" = "string">(stream: string, client: Client, args?: ReadArgs<Format>, options?: RequestOptionsWithHeaders): Promise<ReadBatch<Format>>;
type FetchAppendOptions = RequestOptionsWithHeaders & {
    preferProtobuf?: boolean;
};
export declare function streamAppend(stream: string, client: Client, input: Types.AppendInput, options?: FetchAppendOptions): Promise<Types.AppendAck>;
export {};
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