| Auth | Authorize the RGoogleAnalytics package to the user's Google Analytics Account using OAuth2.0 |
| GetFile | Query the Google Analytics Premium API for the specified dimensions, metrics and other query parameters |
| Init | Initialize the Google Analytics query parameters |
| QueryBuilder | Initialize a QueryBuilder object with the given parameters and perform validation |
| ToBody | Returns the URI constructed from the parameter settings. This also URI-encodes all the values in each query parameter. |
| ValidateToken | Check whether the Access Token has expired |