as3io / modlr-persister-mongodb

            $key = sprintf('%s.%s', $key, Persister::IDENTIFIER_KEY);

        }

        if (is_array($value)) {

            $value = (true === $this->hasOperators($value)) ? $value : ['$in' => $value];

            return [$key, $this->formatQueryExpression($value, $converter)];

        }

        return [$key, $converter($value)];

    }

        }

        $converter = $this->getQueryRootConverter($metadata, $dbKey);

        if (is_array($value)) {

            $value = (true === $this->hasOperators($value)) ? $value : ['$in' => $value];

            return [$dbKey, $this->formatQueryExpression($value, $converter)];

        }

        return [$dbKey, $converter($value)];

    }