/**
 * Creates a logger instance with an `sfc` prefix.
 *
 * This composable provides a logging function specifically for storefront-nuxt internal operations.
 * It wraps the generic `useLog` function and prefixes the provided subspace with `sfc` to distinguish
 * storefront-nuxt logs from application logs. This aids in debugging and troubleshooting by clearly
 * identifying the origin of log messages.
 *
 * @param subSpace The subspace for the logger. If provided, it will be prefixed with `sfc.`.
 * If not provided, the subspace will be just `sfc`.
 *
 * @returns A logger instance.
 */
export declare function useCoreLog(subSpace: string): import("@scayle/storefront-core").Log;