public function updateFields($table, $fields, $allow_delete_parts = false, $return_schema = false)
    {
        $fields = static::validateAsArray(
            $fields,
            ',',
            true,
            'The request contains no valid table field names or properties.'
        );

        $out = [];
        foreach ($fields as $field) {
            $name = (is_array($field)) ? array_get($field, 'name') : $field;
            $this->validateSchemaAccess($table, Verbs::PUT);
            $out[] = $this->updateField($table, $name, $field, $allow_delete_parts, $return_schema);
        }

        return $out;
    }