AWS Amplify, GraphQL endpoint, the Introspection call is authenticated?

Hi,

Next, a quote from this article https://docs.amplify.aws/lib/graphqlapi/getting-started/q/platform/js/#using-graphql-transformers

The CLI automatically downloads GraphQL Introspection Schemas from the defined GraphQL endpoint and generates TypeScript or Flow classes for you

I was wondering if the HTTP call to the defined GraphQL is authenticated or not.

Thanks in advance