BaseProvider (Support SDK v1 - v1921)

```
public interface BaseProvider
```
Meta provider that should be used in all providers which need MobileSettings and an AccessToken.
Every provider method that does network operations should call #configureSdk(ZendeskCallback) before. #configureSdk(ZendeskCallback) will return a SdkConfiguration what contains an AccessToken and MobileSettings.
The implementation of BaseProvider manages loading of MobileSettings and an AccessToken.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`configureSdk(<any> callback)` Loads all configurations that are needed by the SDK to to network requests.
`void`	`getAccessToken(SafeMobileSettings mobileSettings, <any> callback)` Retrieve an instance of `AccessToken`.
`void`	`getSdkSettings(<any> callback)` Retrieve an instance of `MobileSettings`.

- Method Detail
  - configureSdk
```
void configureSdk(<any> callback)
```
    Loads all configurations that are needed by the SDK to to network requests.
    
    Parameters:
    
    callback - A callback that will return a SdkConfiguration or an ErrorResponse
  - getSdkSettings
```
void getSdkSettings(<any> callback)
```
    Retrieve an instance of MobileSettings. This method decides whether the settings should be loaded from the network or from local storage.
    
    Parameters:
    
    callback - A ZendeskCallback that returns MobileSettings or an ErrorResponse
  - getAccessToken
```
void getAccessToken(SafeMobileSettings mobileSettings,
                    <any> callback)
```
    Retrieve an instance of AccessToken. The method decides whether the settings should be loaded from the network or from local storage.
    
    Parameters:
    
    mobileSettings - Valid MobileSettings
    
    callback - A ZendeskCallback that returns AccessToken or an ErrorResponse