/**
 * Structured prefix logger (npm-style).
 * Builds up context segments that prefix every log line.
 *
 * Usage:
 *   const l = createPrefixLog('skywriter', 'pull')
 *   l.info('Server: localhost')          // skywriter info pull Server: localhost
 *   l.prefix('/doc').info('Cloning...')  // skywriter info pull /doc Cloning...
 */
export interface PrefixLog {
    info(message: string): void;
    warn(message: string): void;
    error(message: string): void;
    verbose(message: string): void;
    exec(message: string): void;
    http(message: string): void;
    fs(message: string): void;
    prefix(segment: string): PrefixLog;
}
export declare function createPrefixLog(...segments: string[]): PrefixLog;
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