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[Home](./index.md) &gt; [@contract-case/case-definition-dsl](./case-definition-dsl.md) &gt; [interactions](./case-definition-dsl.interactions.md) &gt; [base](./case-definition-dsl.interactions.base.md) &gt; [ContractCaseCoreSetup](./case-definition-dsl.interactions.base.contractcasecoresetup.md) &gt; [write](./case-definition-dsl.interactions.base.contractcasecoresetup.write.md)

## interactions.base.ContractCaseCoreSetup.write property

Defines how the ContractCase core will behave when writing (ie, defining) an interaction of this type.

**Signature:**

```typescript
readonly write: ContractCaseCoreBehaviour;
```