/**
 * Ruby require/require_relative import resolution.
 * Handles path resolution for Ruby's require and require_relative calls.
 */
import type { SuffixIndex } from './utils.js';
/**
 * Resolve a Ruby require/require_relative path to a matching .rb file.
 *
 * require_relative paths are pre-normalized to './' prefix by the caller.
 * require paths use suffix matching (gem-style paths like 'json', 'net/http').
 */
export declare function resolveRubyImport(importPath: string, normalizedFileList: string[], allFileList: string[], index?: SuffixIndex): string | null;