Bug report

When calling RedisCluster::multi() from phpredis, PHPStan infers the return type as Redis.
However, according to the official phpredis stubs, the return type should be RedisCluster|bool.

redis_cluster.stub.php

Code snippet that reproduces the problem

https://phpstan.org/r/3aadbdea-c0b2-4d2f-bc06-990960c41cf4

Expected output

Result should be inferred as RedisCluster|bool.

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