convertPayload example

Feature::deprecatedClassMessage(__CLASS__, 'v6.6.0.0')
        );

        $toOneFields = $definition->getFields()->filter(fn (Field $field) => $field instanceof OneToOneAssociationField || $field instanceof ManyToOneAssociationField);

        /** @var OneToOneAssociationField|OneToManyAssociationField $field */
        foreach ($toOneFields as $field) {
            if (!\array_key_exists($field->getPropertyName(), $payload) || !\is_array($payload[$field->getPropertyName()])) {
                continue;
            }

            $payload[$field->getPropertyName()] = $this->convertPayload(
                $field->getReferenceDefinition(),
                $payload[$field->getPropertyName()],
                $conversionException,
                $pointer . '/' . $field->getPropertyName()
            );
        }

        $toManyFields = $definition->getFields()->filter(fn (Field $field) => $field instanceof OneToManyAssociationField || $field instanceof ManyToManyAssociationField);

        /** @var OneToManyAssociationField|ManyToManyAssociationField $field */
        foreach ($toManyFields as $field) {