[Home](./index.md) > [@contract-case/case-definition-dsl](./case-definition-dsl.md) > [matchers](./case-definition-dsl.matchers.md) > [base](./case-definition-dsl.matchers.base.md) > [AnyMatcherWithExample](./case-definition-dsl.matchers.base.anymatcherwithexample.md) ## matchers.base.AnyMatcherWithExample class The base class for all Test Equivalence Matchers that have examples provided. Extend this if your matcher knows what the example will be. Otherwise, use `matchers.AnyMatcher` **Signature:** ```typescript export declare abstract class AnyMatcherWithExample extends AnyMatcher ``` **Extends:** AnyMatcher ## Constructors

Constructor	Modifiers	Description
[(constructor)(matcherType, example)](./case-definition-dsl.matchers.base.anymatcherwithexample._constructor_.md)		The base class for all Test Equivalence Matchers that have examples provided. Extend this if your matcher knows what the example will be. Otherwise, use `matchers.AnyMatcher` Only use a type prefixed with `_case:` if you wish to create a special case for a matching behaviour that is already provided by a core ContractCase matcher.

## Methods

Method	Modifiers	Description
[toJSON()](./case-definition-dsl.matchers.base.anymatcherwithexample.tojson.md)		For non-TypeScript implementations (see `AnyMatcher.toJSON`)