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4 changes: 2 additions & 2 deletions src/Normalizer/AttributeNormalizer.php
Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ class AttributeNormalizer implements NormalizerInterface, NormalizerAwareInterfa
/**
* @param AttributeInterface $object
*/
public function normalize($object, string $format = null, array $context = []): array
public function normalize($object, ?string $format = null, array $context = []): array
{
$data = [
'name' => $object->getName(),
Expand All @@ -44,7 +44,7 @@ public function normalize($object, string $format = null, array $context = []):
return $data;
}

public function supportsNormalization($data, string $format = null, array $context = []): bool
public function supportsNormalization($data, ?string $format = null, array $context = []): bool
{
return $data instanceof AttributeInterface;
}
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4 changes: 2 additions & 2 deletions src/Normalizer/EnumNormalizer.php
Original file line number Diff line number Diff line change
Expand Up @@ -13,12 +13,12 @@ class EnumNormalizer implements NormalizerInterface
/**
* @param MetricStateEnum|SensorStateEnum $object
*/
public function normalize($object, string $format = null, array $context = []): string
public function normalize($object, ?string $format = null, array $context = []): string
{
return $object->value;
}

public function supportsNormalization($data, string $format = null, array $context = []): bool
public function supportsNormalization($data, ?string $format = null, array $context = []): bool
{
return $data instanceof MetricStateEnum || $data instanceof SensorStateEnum;
}
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