block/ListTrait.php
private function generateHtmlAttributes($attributes)
	{
		foreach ($attributes as $name => $value) {
			$attributes[$name] = "$name=\"$value\"";
		}
		return implode(' ', $attributes);
	}
private function generateHtmlAttributes($attributes)
	{
		foreach ($attributes as $name => $value) {
			$attributes[$name] = "$name=\"$value\"";
		}
		return implode(' ', $attributes);
	}
Return html attributes string from [attrName => attrValue] list
@param array $attributes the attribute name-value pairs.
@return string