RectangleObservation An object that represents the four vertices of a detected rectangle. Declarationstruct RectangleObservation TopicsCreating an observationinit(_:)init(topLeft:topRight:bottomRight:bottomLeft:)Inspecting an observationRequestDescriptor RelationshipsConforms ToBoundingBoxProvidingCopyableCustomStringConvertibleDecodableEncodableEquatableEscapableHashableQuadrilateralProvidingSendableSendableMetatypeVisionObservation