gtk/gtk_since_3_12.go
func (fb *FlowBox) UnselectChild(child *FlowBoxChild) {
	C.gtk_flow_box_unselect_child(fb.native(), child.native())
}
func (fb *FlowBox) UnselectChild(child *FlowBoxChild) {
	C.gtk_flow_box_unselect_child(fb.native(), child.native())
}
// UnselectChild is a wrapper around gtk_flow_box_unselect_child()