import type { InputStream, OutputStream } from '../types';
export declare class StringInputStream implements InputStream {
    private data;
    private position;
    constructor(data: string);
    read(): Promise<string | null>;
    readAll(): Promise<string>;
}
export declare class StringOutputStream implements OutputStream {
    private buffer;
    private closed;
    write(data: string): Promise<void>;
    close(): Promise<void>;
    getOutput(): string;
    clear(): void;
}
export declare class PipeStream implements InputStream, OutputStream {
    private buffer;
    private position;
    private closed;
    private resolvers;
    write(data: string): Promise<void>;
    read(): Promise<string | null>;
    readAll(): Promise<string>;
    close(): Promise<void>;
    isClosed(): boolean;
}
export declare class EmptyInputStream implements InputStream {
    read(): Promise<string | null>;
    readAll(): Promise<string>;
}
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