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# addTokenConfiguration(for:)

Creates a configuration object for a token with the token instance identifier you specify.

```
func addTokenConfiguration(for instanceID: TKToken.InstanceID) -> TKToken.Configuration
```

## Parameters

`instanceID`

The token’s instance identifier.

## Return Value

The configuration class for the token.

## Discussion

This method adds the created configuration into the [`tokenConfigurations`](/documentation/CryptoTokenKit/TKTokenDriver/Configuration/tokenConfigurations) dictionary. Adding a configuration with an `instanceID` that already exists replaces the existing configuration with a new empty configuration.

---

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