AI-generated Key Takeaways
- 
          AddressConstants is an interface containing constants used for Address APIs. 
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          It includes nested interfaces for ErrorCodes, Extras, ResultCodes, and Themes. 
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          These nested interfaces provide definitions for error codes, intent extra keys, custom result codes, and system themes relevant to Address APIs. 
    public interface AddressConstants
  
  
  Constants used for Address APIs.
Nested Class Summary
| interface | AddressConstants.ErrorCodes | Error codes that could be returned in the data Intent returned to your Activity via its onActivityResult method. | |
| interface | AddressConstants.Extras | Keys for Intent extras. | |
| interface | AddressConstants.ResultCodes | Custom result codes that can be returned to your
              Activity's onActivityResult method after you call 
              requestUserAddress(GoogleApiClient, UserAddressRequest, int). | |
| interface | AddressConstants.Themes | System themes that can be used to customize the
              UI elements shown when you call 
              requestUserAddress(GoogleApiClient, UserAddressRequest, int). | |