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update deps & install rector
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@@ -4,10 +4,7 @@ namespace DesignPatterns\Structural\Proxy;
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class BankAccountProxy extends HeavyBankAccount implements BankAccount
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{
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/**
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* @var int
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*/
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private $balance;
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private ?int $balance = null;
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public function getBalance(): int
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{
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@@ -7,7 +7,7 @@ class HeavyBankAccount implements BankAccount
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/**
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* @var int[]
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*/
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private $transactions = [];
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private array $transactions = [];
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public function deposit(int $amount)
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{
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