import { Writable } from 'node:stream';
export declare class StringWriteStream extends Writable {
    private buffer;
    /**
     * Terminal width in columns.
     * Used by formatTable() to apply width constraints and prevent table overflow.
     */
    get columns(): number | undefined;
    constructor();
    _write(chunk: any, _encoding: string, callback: (error?: Error | null) => void): void;
    toString(): string;
}
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