Method add_node

src/detector/lock/mod.rs:868–870

(&mut self, relation: (LockGuardId, LockGuardId))

            wait_notify_locks,
        )
    }
}

/// The NodeIndex in ConflictLockGraph, denoting a unique relation(a, b) in ConflictLockGraph,
/// where a and b are LockGuardId.
type RelationId = NodeIndex;