### Question:
RadioButton extends AbstractElement implements Checkable { public boolean isChecked() { return ((RemoteWebElement) getElement()).isSelected(); } RadioButton(String locator);  RadioButton(String locator, String controlName);  RadioButton(ParentTraits parent, String locator);  RadioButton(String locator, String controlName, ParentTraits parent); void check(); void click(); void click(String locator); boolean isChecked();  }### Answer:
@Test(groups = { "browser-tests" }) @WebTest public void radioBtnTestIsChecked() { Grid.driver().get(TestServerUtils.getTestEditableURL()); assertTrue(baseRadioButton.isChecked(), "Validate isChecked method"); }