These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.02 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/libxmlb-0.3.29:0/2::gentoo  USE="lzma zstd -doc -introspection -stemmer -test -verify-sig" 106 KiB

Total: 1 package (1 new), Size of downloads: 106 KiB