DatoCMS.GraphQLClient.Backends.StandardClient.fetch_all_localized-exclamation-mark

You're seeing just the function fetch_all_localized-exclamation-mark, go back to DatoCMS.GraphQLClient.Backends.StandardClient module for more information.
Link to this function

fetch_all_localized!(key, locale, query, params \\ %{}, options \\ [])