The example here https://docs.cypress.io/guides/tooling/typescript-support#Types-for-Custom-Commands gives multiple TypeScript errors. - Augmentations for the global scope can only be directly nested in external modules or ambient module declarations.ts(2669) - ES2015 module syntax is preferred over custom TypeScript modules and namespaces.eslint@typescript-eslint/no-namespace - Type 'Chainable' is not generic.ts(2315)