Method getInput

/**
 * Method to get the textarea field input markup.
 * Use the rows and columns attributes to specify the dimensions of the area.
 *
 * @return  string  The field input markup.
 *
 * @since   1.7.0
 */
protected function getInput()
{
    // Trim the trailing line in the layout file
    return rtrim($this->getRenderer($this->layout)->render($this->getLayoutData()), PHP_EOL);
}