/**
 * Install-method detection.
 *
 * Resolves `argv1` (defaults to `process.argv[1]`) through `realpathSync` and
 * pattern-matches the resolved path to determine how the user installed `ref`.
 * Inside a Bun single-file executable, `argv[1]` is a bunfs virtual path, so
 * the real on-disk binary path (`execPath`) is substituted first.
 */
export type InstallMethod = "binary" | "npm-global" | "dev" | "npx";
export declare function isBunfsPath(path: string): boolean;
/**
 * Returns the real on-disk path of the running entrypoint: `argv1` normally,
 * or `execPath` when `argv1` points into the bunfs virtual filesystem of a
 * Bun single-file executable.
 */
export declare function resolveEntrypoint(argv1?: string, execPath?: string): string | undefined;
export declare function detectInstallMethod(argv1?: string, execPath?: string): InstallMethod;
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