@phpstan-yield

The @phpstan-yield tag documents the type yielded by a Generator, distinct from the type it returns on completion. It is defined by the static analyzer PHPStan.

Parsing a @phpstan-yield tag produces a YieldTag instance, carrying the parsed $type alongside the $name and optional $description every Tag already provides.

The same YieldTag is produced by @psalm-yield, which restates the same concept for its tool.

See PHPStan's PHPDoc basics page.