pub struct TestingMeasurer;

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impl LayoutMeasurer<usize> for TestingMeasurer

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fn measure( &mut self, _node_id: usize, _node: &Node, _area_size: &Size2D ) -> Option<(Size2D, Arc<SendAnyMap>)>

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fn should_measure_inner_children(&mut self, _node_id: usize) -> bool

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fn notify_layout_references(&self, _node_id: Key, _layout_node: &LayoutNode)

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