demos/demo.php:18:13: RedundantCondition: Type 4 for $var1 is always =int(4) (see https://psalm.dev/122)

src/Terremoth/Async/File.php:20:28: InvalidNullableReturnType: The declared return type 'int' for Terremoth\Async\File::run is not nullable, but 'null' contains null (see https://psalm.dev/144)

src/Terremoth/Async/File.php:20:28: PossiblyUnusedReturnValue: The return value for this method is never used (see https://psalm.dev/273)

src/Terremoth/Async/File.php:29:16: NullableReturnStatement: The declared return type 'int' for Terremoth\Async\File::run is not nullable, but the function returns 'null' (see https://psalm.dev/139)

src/Terremoth/Async/Process.php:32:51: PossiblyUnusedReturnValue: The return value for this method is never used (see https://psalm.dev/273)