libqtdbus4 - 4:4.8.7+dfsg-18+deb10u1 main

Qt is a cross-platform C++ application framework. Qt's primary feature
is its rich set of widgets that provide standard GUI functionality.
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The QtDBus module is a Unix-only library that you can use to make Inter-Process
Communication using the D-Bus protocol.
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Applications using the QtDBus module can provide services to other, remote
applications by exporting objects, as well as use services exported by those
applications by placing calls and accessing properties.