gtk/tree_view.go
func (v *TreeView) SetLevelIndentation(indent int) {
	C.gtk_tree_view_set_level_indentation(v.native(), C.gint(indent))
}
func (v *TreeView) SetLevelIndentation(indent int) {
	C.gtk_tree_view_set_level_indentation(v.native(), C.gint(indent))
}
// SetLevelIndentation is a wrapper around gtk_tree_view_set_level_indentation().