phpstan complains: PropertyPath (from symfony) does not specify iterable type

When you are using phpstan and the Symfony Component Property Access and you would get this error:

Method YAY\Sync\Subject::initPath() has parameter $path with no value type specified in iterable type Symfony\Component\PropertyAccess\PropertyPath

Make sure that you

a) have the phpstan symfony extension installed

b) you are using the interface:

private function initPath(PropertyPathInterface $path): void

instead of

private function initPath(PropertyPath $path): void

Just the plain path. The reason is, that in the phpstan symfony extension the interface is stubbed and has the iterable type applied.

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