AI-generated Key Takeaways
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          GMTSWaypoint represents an intermediate point along a route. 
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          The latLngproperty provides the latitude and longitude of the waypoint.
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          The initWithLatLng:method is used to instantiate a GMTSWaypoint object, specifying the latitude and longitude.
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          The initmethod is unavailable; you should utilize theinitWithLatLng:method instead.
GMTSWaypoint
@interface GMTSWaypoint : GMTCImmutableDataObject representing an intermediate point along a route.
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                  The latitude and longitude associated with the waypoint. DeclarationSwift @NSCopying var latLng: GMTSLatLng? { get }Objective-C @property (nonatomic, copy, readonly, nullable) GMTSLatLng *latLng;
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                  Instantiates the object. DeclarationSwift init(latLng: GMTSLatLng?)Objective-C - (nonnull instancetype)initWithLatLng:(nullable GMTSLatLng *)latLng;ParameterslatLngThe latitude and longitude associated with the waypoint. 
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                  Unavailable Use -initWithLatLng:.DeclarationObjective-C - (nonnull instancetype)init;