public function describeTables($tables, $refresh = false)
    {
        $tables = static::validateAsArray(
            $tables,
            ',',
            true,
            'The request contains no valid table names or properties.'
        );

        $out = [];
        foreach ($tables as $table) {
            $name = (is_array($table)) ? array_get($table, 'name') : $table;
            $this->validateSchemaAccess($name, Verbs::GET);

            $out[] = $this->describeTable($table, $refresh);
        }

        return $out;
    }