/**
* Removes an extension helper.
*
* @param string $name The extension helper name.
*
* @throws \Ivory\GoogleMap\Exception\HelperException If the extension helper does not exist.
*/
public function removeExtensionHelper($name)
{
if (!$this->hasExtensionHelper($name)) {
throw HelperException::invalidExtension($name);
}
unset($this->extensionHelpers[$name]);
}
