class SpringBatchVersion {

	/**
	 * The key to use in the execution context for batch version.
	 */
	public static final String BATCH_VERSION_KEY = "batch.version";

	private SpringBatchVersion() {
	}

	/**
	 * Return the full version string of the present Spring Batch codebase, or
	 * {@code "N/A"} if it cannot be determined.
	 * @see Package#getImplementationVersion()
	 */
	@Nullable
	public static String getVersion() {<FILL_FUNCTION_BODY>}

}

		Package pkg = SpringBatchVersion.class.getPackage();
		if (pkg != null && pkg.getImplementationVersion() != null) {
			return pkg.getImplementationVersion();
		}
		return "N/A";
	
<no_super_class>