Extra parameters for mediation custom events. These parameters are passed by the Google Mobile Ads SDK to mediation custom events.

| Properties ||
|---|---|
| `https://developers.google.com/admob/react-native/reference/interface/MediationExtras#MediationExtras.androidAdapterClassName` | The Android mediation extra builder class name. |
| `https://developers.google.com/admob/react-native/reference/interface/MediationExtras#MediationExtras.extras` | The extra parameters passed to the mediation adapter. |
| `https://developers.google.com/admob/react-native/reference/interface/MediationExtras#MediationExtras.iosAdapterClassName` | The iOS mediation extra builder class name. |

## Properties

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### `Optional` `Readonly`
androidAdapterClassName

`androidAdapterClassName?:
string` The Android mediation extra builder class name.

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### `Optional` `Readonly` extras

`extras?: Readonly<Record<string, unknown>>` The extra parameters passed to the mediation adapter.  

Values must be JSON-serializable types (strings, numbers, booleans, null, or arrays or objects of these types). Functions, class instances, or complex JavaScript types such as Set and Map aren't supported.

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### `Optional` `Readonly`
iosAdapterClassName

`iosAdapterClassName?:
string` The iOS mediation extra builder class name.