enum LogLevel {
  "debug",
  "info",
  "warn",
  "error"
};

enum Direction {
  "up",
  "down",
  "left",
  "right"
};

enum DisplayMode {
  "fullscreen",
  "standalone",
  "minimal-ui",
  "browser"
};

interface Logger {
  void log(DOMString message, optional LogLevel level = "info");
  void logWithDirection(DOMString message, optional LogLevel level = "info", optional Direction dir = "up");
  void logWithDisplayMode(DOMString message, DisplayMode display);
};