errors of the GraphQL execution
result.DataFetcher's that can enable a client to make automated
decisions.DataFetcherExceptionResolver's to use for resolving exceptions from
DataFetcher's.GraphQlService that performs GraphQL request execution
through GraphQL.executeAsync(ExecutionInput).extensions of the GraphQL
execution result.Context, so those can be restored later
around the execution of data fetchers and exception resolvers.restored around the
invocation of data fetchers and exception resolvers.