code: public <T> T andExecute(Block<T> code) {
  		MillisProvider provider = getCurrentTimeMillisProvider();
  		DateTimeUtils.setCurrentMillisFixed(somewhereInTime.getMillis());
  		try {
  			return code.run();
  		} finally {
  			DateTimeUtils.setCurrentMillisProvider(provider);
  		}
  	}
docs: Runs the given {@link Block} in the date and time given when constructing
  the TimeMachine. A {@link DateTime} created inside the given code will
  have always the same value, equal to the DateTime given when constructing
  the TimeMachine.
  
  @param code
  The code to be run in a different date and time
  @return The result of running the given code