The Magento_BraintreeGraphQl module provides type and resolver information for the GraphQL module to pass payment information data from the client to Magento.
Extension developers can interact with the Magento_BraintreeGraphQl module. For more information about the Magento extension mechanism, see Magento plug-ins.
The Magento dependency injection mechanism enables you to override the functionality of the Magento_BraintreeGraphQl module.