Get a pointer from QML to a cartography plugin class

Deymos

Hello, I have a custom plugin for OpenStreetMap that works offline with maps, and in QML I have a Map component that uses this plugin:

    Window {
        visible: true
        width: 640
        height: 480
        Map {
            id: map
            anchors.fill: parent
            zoomLevel: 4
            center: QtPositioning.coordinate(54,28);
            copyrightsVisible: false
            plugin: Plugin {
                name: "osm_custom";
                PluginParameter {
                    name: "osm_custom.mapping.offline.directory"
                    value: "/home/deymos/Рабочий стол/build-Tiler-Desktop_Qt_5_14_1_GCC_64bit-Debug/offline_tiles"
                }
            }
        }
    }

And now it's time, besides displaying the map, to mark places and draw a route on it, and all calculations should occur on the plug-in side, and so, I need to somehow transfer the coordinates from QML to the plug-in class, ideally if there is such a possibility I need to get a pointer to plugin class and pass coordinates directly.

P.S. The plugin is located in a different directory and is linked to the QML application only by what is specified in the Plugin component.