declare global {
    interface Performance {
        memory?: {
            jsHeapSizeLimit: number;
            totalJSHeapSize: number;
            usedJSHeapSize: number;
        };
    }
}
/**
 * Memory class handles retrieving memory statistics for various environments.
 */
export default class Memory {
    /**
     *
     * @return {string} - memory usage result
     */
    static checkMemoryUsage(): string;
    /**
     *
     * @return {string} - memory usage result for browser systems
     */
    private static checkBrowserMemory;
    /**
     *
     * @return {string} - memory usage result for node systems
     */
    private static checkNodeMemory;
}
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