@phpstan-template-covariant

The @phpstan-template-covariant tag is PHPStan's vendor-specific @template-covariant alias. It is the vendor-prefixed spelling of @template-covariant, which this component already recognizes bare.

This library recognizes it as an alias: it parses identically to the canonical tag above and produces the exact same tag instance, keeping the vendor-prefixed name it was written with.

See PHPStan's covariant templates post.