Good day. Documentation: https://graphql.org/graphql-js/utilities/#isvalidjsvalue The function `isValidJSValue` was removed in : https://github.com/graphql/graphql-js/pull/2126 Please update documentation. Thank you. Please help me to understand how do I verify if value (part of data) on server side is consistent with schema, before I send it to client? Thank you.