code: public boolean waitForWebElement(By by){
  		if(config.commandLogging){
  			Log.d(config.commandLoggingTag, "waitForWebElement("+by+")");
  		}
  		
  		return (waiter.waitForWebElement(by, 0, Timeout.getLargeTimeout(), true) != null);
  	}
docs: Waits for a WebElement matching the specified By object. Default timeout is 20 seconds.
  
  @param by the By object. Examples are: {@code By.id("id")} and {@code By.name("name")}
  @return {@code true} if the {@link WebElement} is displayed and {@code false} if it is not displayed before the timeout