improve phpdoc for normalizer #60769
Open
+14
−12
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The problem with the old phpdoc is that phpstan complains about the user's concrete implementation ("no value type specified in iterable type array")
Moreover, if the user adds the proper phpdoc in their concrete implementation, phpstan still complains about the concrete method not being contravariant (using strict rules)
After a Slack discussion with @stof we agreed that this small improvement could be useful, and avoid being forced to install phpstan-symfony to get the proper annotation.