File list of package uim-gtk3-immodule in buster of architecture arm64
/usr/lib/aarch64-linux-gnu/gtk-3.0/3.0.0/immodules/im-uim.so /usr/share/doc/uim-gtk3-immodule
/usr/lib/aarch64-linux-gnu/gtk-3.0/3.0.0/immodules/im-uim.so /usr/share/doc/uim-gtk3-immodule