Inheriting metadata from parent structures

suggest change

If a class extends another class and would use the same metadata, providing it @inheritDoc is a simple way for use the same documentation. If multiple classes inherit from a base, only the base would need to be changed for the children to be affected.

abstract class FooBase
{
    /**
     * @param Int $a First parameter to add
     * @param Int $b Second parameter to add
     * @return Int
     */
    public function sum($a, $b) {}
}

class ConcreteFoo extends FooBase
{
    /**
     * @inheritDoc
     */
    public function sum($a, $b)
    {
        return $a + $b;
    }
}

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