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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_ke896qc7a3l6ds27d860085in3, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
sinterface WidthAndHeight {
  int getWidth aka w();
  int getHeight aka h();
  
  public default Rect bounds() { ret rect(0, 0, getWidth(), getHeight()); }
  
  default int area() { ret toInt(areaAsLong()); }
  default long areaAsLong() { ret longMul(w(), h()); }
}