You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: schema.rs
    path of file: ./repos/async-graphql/src/dynamic
    
    the code of the file until where you have to start completion: use std::{any::Any, collections::HashMap, fmt::Debug, sync::Arc};

use async_graphql_parser::types::OperationType;
use futures_util::{stream::BoxStream, Stream, StreamExt, TryFutureExt};
use indexmap::IndexMap;

use crate::{
    dynamic::{
        field::BoxResolverFn, r#type::Type, resolve::resolve_container, DynamicRequest,
        FieldFuture, FieldValue, Object, ResolverContext, Scalar, SchemaError, Subscription,
        TypeRef, Union,
    },
    extensions::{ExtensionFactory, Extensions},
    registry::{MetaType, Registry},
    schema::{prepare_request, SchemaEnvInner},
    Data, Executor, IntrospectionMode, QueryEnv, Request, Response, SDLExportOptions, SchemaEnv,
    ServerError, ServerResult, ValidationMode,
};

/// Dynamic schema bu
    
    async fn list() {
        let query = Object::new("Query")
            .field(Field::new(
                "values",
                TypeRef::named_nn_list_nn(TypeRef::INT),
                |_| {
                    FieldFuture::new(async {
                        Ok(Some(vec![Value::from(3), Value::from(6), Value::from(9)]))
                    })
                },
            ))
            .field(Field::new(
                "values2",
                TypeRef::named_nn_list_nn(TypeRef::INT),
                |_| {
                    FieldFuture::new(async {
                        Ok(Some(Value::List(vec![
                            Value::from(3),
                            Value::from(6),
                            Value::from(9),
                        ])))
                    })
                },
            ))
            .field(Field::new(
                "values3",
                TypeRef::named_nn_list(TypeRef::INT),
                |_| FieldFuture::new(async { Ok(None::<Vec<Value>>) }),
            ));
        let schema = Schema::build("Query", None, None)
            .register(query)
            .finish()
            .unwrap();

        assert_eq!(
            schema
                .execute("{ values values2 values3 }")
                .await
                .into_result()
                .unwrap()
                .data,
            value!({
                "values": [3, 6, 9],
                "values2": [3, 6, 9],
                "values3": null,
            })
        );
    }