> ## Documentation Index
> Fetch the complete documentation index at: https://cantonfoundation-generated-reference-full-stack-preview.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# ContractCompanion.WithKey.NewContract

> Generated object reference page for ContractCompanion.WithKey.NewContract from local Javadoc snapshots.

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## Signature

```java theme={"theme":{"light":"github-light","dark":"github-dark"}}
@FunctionalInterface public static interface ContractCompanion.WithKey.NewContract<Ct,Id,Data,Key>
```

## Members

| Member                                                           | Lifecycle     | Upstream docs                                                                                                                                                                                                        |
| ---------------------------------------------------------------- | ------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `newContract(Id, Data, Optional<Key>, Set<String>, Set<String>)` | Added `3.4.8` | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.15/com/daml/ledger/javaapi/data/codegen/ContractCompanion.WithKey.NewContract.html#newContract%28Id,Data,java.util.Optional,java.util.Set,java.util.Set%29) |