Method filterExtensionsBasedOn

/**
 * Filters the extension type
 *
 * @param   string  $type  Extension type
 *
 * @return array
 *
 * @since 4.0.0
 */
private function filterExtensionsBasedOn($type) : array
{
    $extensions = [];
    foreach ($this->extensions as $key => $extension) {
        if ($extension['type'] == $type) {
            $extensions[] = $extension;
        }
    }
    return $extensions;
}