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#import <Foundation/Foundation.h>
/**
`MGLSource` is an abstract base class for map content sources. A map content
source supplies content to be shown on the map. A source is added to an
`MGLStyle` object along with an `MGLForegroundStyleLayer` object. The
foreground style layer defines the appearance of any content supplied by the
source.
Each source defined by the style JSON file is represented at runtime by an
`MGLSource` object that you can use to refine the map’s content. You can also
add and remove sources dynamically using methods such as
`-[MGLStyle addSource:]` and `-[MGLStyle sourceWithIdentifier:]`.
Do not create instances of this class directly, and do not create your own
subclasses of this class. Instead, create instances of `MGLRasterSource`,
`MGLShapeSource`, and `MGLVectorSource`.
*/
@interface MGLSource : NSObject
#pragma mark Initializing a Source
/**
Returns a source initialized with an identifier.
After initializing and configuring the source, add it to a map view’s style
using the `-[MGLStyle addSource:]` method.
@param identifier A string that uniquely identifies the source in the style to
which it is added.
@return An initialized source.
*/
- (instancetype)initWithIdentifier:(NSString *)identifier;
#pragma mark Identifying a Source
/**
A string that uniquely identifies the source in the style to which it is added.
*/
@property (nonatomic, copy) NSString *identifier;
@end
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