A injection token to hold and provide a config value.
| Name | Type | Description |
|---|---|---|
| token | InjectionToken<T> | The injection token. Its default value is the default config passed during token creation. |
| provider | <R extends T = T>(config: Partial<R> | InjectionToken<Partial<R>>) => FactoryProvider | A helper function to provide a value to the token. It will shallow merge the passed config with the default config with the passed config keys taking precedence. An injection token containing a config may also be passed. |