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pub(crate) const K_IS_ON_HEAP: u32 = 0x01000000; // pub(crate) const K_BIT_MASK: u32 = 0x00ffffff; pub(crate) const K_IS_REFERENCED: u32 = 1 << 4; // pub(crate) const K_HAS_UUID: u32 = 1 << 5;