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psalm/docs/running_psalm/issues/UnusedMethodCall.md

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# UnusedMethodCall
Emitted when `--find-dead-code` is turned on and Psalm finds a method call whose return value is not used anywhere
```php
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<?php
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final class A {
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private string $foo;
public function __construct(string $foo) {
$this->foo = $foo;
}
public function getFoo() : string {
return $this->foo;
}
}
$a = new A("hello");
$a->getFoo();
```