Use DateTimeImmutable instead of DateTimeInterface (#365)

* Use DateTimeImmutable instead of DateTimeInterface

* Short syntax

Author: Nyholm

src/ValueObject/ArchivalSummary.php

@@ -22,7 +22,7 @@ class ArchivalSummary
 
     /**
      * @param array{
-     *   ArchivalDateTime?: null|\DateTimeInterface,
+     *   ArchivalDateTime?: null|\DateTimeImmutable,
      *   ArchivalReason?: null|string,
      *   ArchivalBackupArn?: null|string,
      * } $input
@@ -44,7 +44,7 @@ public function getArchivalBackupArn(): ?string
         return $this->ArchivalBackupArn;
     }
 
-    public function getArchivalDateTime(): ?\DateTimeInterface
+    public function getArchivalDateTime(): ?\DateTimeImmutable
     {
         return $this->ArchivalDateTime;
     }

src/ValueObject/BillingModeSummary.php

@@ -20,7 +20,7 @@ class BillingModeSummary
     /**
      * @param array{
      *   BillingMode?: null|\AsyncAws\DynamoDb\Enum\BillingMode::*,
-     *   LastUpdateToPayPerRequestDateTime?: null|\DateTimeInterface,
+     *   LastUpdateToPayPerRequestDateTime?: null|\DateTimeImmutable,
      * } $input
      */
     public function __construct(array $input)
@@ -42,7 +42,7 @@ public function getBillingMode(): ?string
         return $this->BillingMode;
     }
 
-    public function getLastUpdateToPayPerRequestDateTime(): ?\DateTimeInterface
+    public function getLastUpdateToPayPerRequestDateTime(): ?\DateTimeImmutable
     {
         return $this->LastUpdateToPayPerRequestDateTime;
     }

src/ValueObject/ProvisionedThroughputDescription.php

@@ -36,8 +36,8 @@ class ProvisionedThroughputDescription
 
     /**
      * @param array{
-     *   LastIncreaseDateTime?: null|\DateTimeInterface,
-     *   LastDecreaseDateTime?: null|\DateTimeInterface,
+     *   LastIncreaseDateTime?: null|\DateTimeImmutable,
+     *   LastDecreaseDateTime?: null|\DateTimeImmutable,
      *   NumberOfDecreasesToday?: null|string,
      *   ReadCapacityUnits?: null|string,
      *   WriteCapacityUnits?: null|string,
@@ -57,12 +57,12 @@ public static function create($input): self
         return $input instanceof self ? $input : new self($input);
     }
 
-    public function getLastDecreaseDateTime(): ?\DateTimeInterface
+    public function getLastDecreaseDateTime(): ?\DateTimeImmutable
     {
         return $this->LastDecreaseDateTime;
     }
 
-    public function getLastIncreaseDateTime(): ?\DateTimeInterface
+    public function getLastIncreaseDateTime(): ?\DateTimeImmutable
     {
         return $this->LastIncreaseDateTime;
     }

src/ValueObject/RestoreSummary.php

@@ -28,7 +28,7 @@ class RestoreSummary
      * @param array{
      *   SourceBackupArn?: null|string,
      *   SourceTableArn?: null|string,
-     *   RestoreDateTime: \DateTimeInterface,
+     *   RestoreDateTime: \DateTimeImmutable,
      *   RestoreInProgress: bool,
      * } $input
      */
@@ -45,7 +45,7 @@ public static function create($input): self
         return $input instanceof self ? $input : new self($input);
     }
 
-    public function getRestoreDateTime(): \DateTimeInterface
+    public function getRestoreDateTime(): \DateTimeImmutable
     {
         return $this->RestoreDateTime;
     }

src/ValueObject/SSEDescription.php

@@ -35,7 +35,7 @@ class SSEDescription
      *   Status?: null|\AsyncAws\DynamoDb\Enum\SSEStatus::*,
      *   SSEType?: null|\AsyncAws\DynamoDb\Enum\SSEType::*,
      *   KMSMasterKeyArn?: null|string,
-     *   InaccessibleEncryptionDateTime?: null|\DateTimeInterface,
+     *   InaccessibleEncryptionDateTime?: null|\DateTimeImmutable,
      * } $input
      */
     public function __construct(array $input)
@@ -51,7 +51,7 @@ public static function create($input): self
         return $input instanceof self ? $input : new self($input);
     }
 
-    public function getInaccessibleEncryptionDateTime(): ?\DateTimeInterface
+    public function getInaccessibleEncryptionDateTime(): ?\DateTimeImmutable
     {
         return $this->InaccessibleEncryptionDateTime;
     }

src/ValueObject/TableDescription.php

@@ -128,7 +128,7 @@ class TableDescription
      *   TableName?: null|string,
      *   KeySchema?: null|\AsyncAws\DynamoDb\ValueObject\KeySchemaElement[],
      *   TableStatus?: null|\AsyncAws\DynamoDb\Enum\TableStatus::*,
-     *   CreationDateTime?: null|\DateTimeInterface,
+     *   CreationDateTime?: null|\DateTimeImmutable,
      *   ProvisionedThroughput?: null|\AsyncAws\DynamoDb\ValueObject\ProvisionedThroughputDescription|array,
      *   TableSizeBytes?: null|string,
      *   ItemCount?: null|string,
@@ -195,7 +195,7 @@ public function getBillingModeSummary(): ?BillingModeSummary
         return $this->BillingModeSummary;
     }
 
-    public function getCreationDateTime(): ?\DateTimeInterface
+    public function getCreationDateTime(): ?\DateTimeImmutable
     {
         return $this->CreationDateTime;
     }