# roles ### Description Use `roles` to check if the [instance](/guides/glossary/instance.md) in a case has a certain role. Based on that, you can require different [documents](/guides/glossary/document.md). ### Example ``` p is Person p.roles contains AccountHolder ``` This condition evaluates to 'true' if the person involved has a role as an account holder in the [case](/guides/glossary/case.md). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.atfinity.io/rule-language/operators/special-operators/roles.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.