docs: public static void setGlobalVar(String key, String value) {
  		validateKey(key);
  
  		if (value == null) {
  			globalVars.remove(key);
  		} else {
  			validateValueLength(value);
  			if (globalVars.size() > MAX_GLOBAL_VARS) {
  				throw new IllegalArgumentException("Maximum number of global variables reached: " + MAX_GLOBAL_VARS);
  			}
  			globalVars.put(key, value);
  		}
  	}