How to use env variables inside /utils folder?

export const isDev = process.env.NODE_ENV === 'development';
export const isConsoleDebugSee = process.env.CONSOLE_DEBUG;
export const isConsoleDebug = process.env.CONSOLE_DEBUG
  ? process.env.CONSOLE_DEBUG === 'true'
  : undefined;
export const isPreviewDebug = process.env.DISPLAY_PREVIEW_CONETENT
  ? process.env.DISPLAY_PREVIEW_CONETENT === 'true'
  : undefined;
export const isConsole =
  typeof isConsoleDebug !== 'undefined' ? isConsoleDebug : isDev;
export const isPreview =
  typeof isPreviewDebug !== 'undefined' ? isPreviewDebug : isDev;