#import NS_ASSUME_NONNULL_BEGIN /** An object conforming to the `MGLOfflineRegion` protocol determines which resources are required by an `MGLOfflinePack` object. At present, only instances of `MGLTilePyramidOfflineRegion` may be used as `MGLOfflinePack` regions, but additional conforming implementations may be added in the future. */ @protocol MGLOfflineRegion @end NS_ASSUME_NONNULL_END