GMSPanoramaLayer
@interface GMSPanoramaLayer : GMSCALayerGMSPanoramaLayer is a custom subclass of CALayer, provided as the layer class on
GMSPanoramaView. This layer should not be instantiated directly.
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                  DeclarationSwift var cameraHeading: CLLocationDirection { get set }Objective-C @property(nonatomic) CLLocationDirection cameraHeading
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                  DeclarationSwift var cameraPitch: Double { get set }Objective-C @property(nonatomic) double cameraPitch
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                  DeclarationSwift var cameraZoom: Float { get set }Objective-C @property(nonatomic) float cameraZoom
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                  DeclarationSwift var cameraFOV: Double { get set }Objective-C @property(nonatomic) double cameraFOV