Sets the model for a #GtkTreeView. If the @tree_view already has a model set, it will remove it before setting the new model. If @model is %NULL, then it will unset the old model.
The model.
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Sets the model for a #GtkTreeView. If the @tree_view already has a model set, it will remove it before setting the new model. If @model is %NULL, then it will unset the old model.