presto-main/src/main/java/io/prestosql/memory/MemoryManagerConfig.java/MemoryManagerConfig/setLowMemoryKillerPolicy
class MemoryManagerConfig:    @Config("query.low-memory-killer.policy")
    public MemoryManagerConfig setLowMemoryKillerPolicy(String lowMemoryKillerPolicy)
    {
        this.lowMemoryKillerPolicy = lowMemoryKillerPolicy;
        return this;
    }