/**
 * Find the path to an executable, similar to the `which` command.
 * Uses Bun.which when running in Bun, falls back to spawnSync for Node.js.
 *
 * @param bin - The name of the executable to find
 * @returns The full path to the executable, or null if not found
 */
export declare function whichSync(bin: string): string | null;
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