I see that there are types like Merge and MergeUp and others. What does the Up stand for?
The Up usually means that the type is a counterpart of another type that is able to handle Unions. It goes "up" within a union, and is also an upgrade of its non-up counterpart.
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The Up usually means that the type is a counterpart of another type that is able to handle
Unions. It goes "up" within a union, and is also an upgrade of its non-up counterpart.