test/ServerTest.php:119:54: PossiblyFalseReference: Cannot call method getCallback on possibly false value (see https://psalm.dev/105)

src/Smd/Service.php:446:13: RiskyTruthyFalsyComparison: Operand of type null|string contains type string, which can be falsy and truthy. This can cause possibly unexpected behavior. Use strict comparison instead. (see https://psalm.dev/356)

src/Smd/Service.php:379:21: RiskyTruthyFalsyComparison: Operand of type false|int<0, max> contains type int<0, max>, which can be falsy and truthy. This can cause possibly unexpected behavior. Use strict comparison instead. (see https://psalm.dev/356)

src/Server.php:601:40: PossiblyFalseArgument: Argument 1 of Laminas\Json\Server\Server::_dispatch cannot be false, possibly Laminas\Server\Method\Definition value expected (see https://psalm.dev/104)

src/Server.php:593:13: PossiblyFalseArgument: Argument 3 of Laminas\Json\Server\Server::validateAndPrepareParams cannot be false, possibly Laminas\Server\Method\Definition value expected (see https://psalm.dev/104)

src/Server.php:551:17: RiskyTruthyFalsyComparison: Operand of type false|string contains type string, which can be falsy and truthy. This can cause possibly unexpected behavior. Use strict comparison instead. (see https://psalm.dev/356)

src/Server.php:415:19: MixedArrayAccess: Cannot access array value on mixed variable $param (see https://psalm.dev/051)