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  1. /*
  2. * Copyright 2018 Google
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. */
  16. #ifndef FIRLibrary_h
  17. #define FIRLibrary_h
  18. #import <Foundation/Foundation.h>
  19. @class FIRApp;
  20. @class FIRComponent;
  21. NS_ASSUME_NONNULL_BEGIN
  22. /// Provide an interface to register a library for userAgent logging and availability to others.
  23. NS_SWIFT_NAME(Library)
  24. @protocol FIRLibrary
  25. /// Returns one or more FIRComponents that will be registered in
  26. /// FIRApp and participate in dependency resolution and injection.
  27. + (NSArray<FIRComponent *> *)componentsToRegister;
  28. @optional
  29. /// Implement this method if the library needs notifications for lifecycle events. This method is
  30. /// called when the developer calls `FirebaseApp.configure()`.
  31. + (void)configureWithApp:(FIRApp *)app;
  32. @end
  33. NS_ASSUME_NONNULL_END
  34. #endif /* FIRLibrary_h */