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: extend_object.rs
    path of file: ./repos/graphql-client/graphql_client_codegen/src/schema/tests
    
    the code of the file until where you have to start completion: use crate::schema::Schema;

const SCHEMA_JSON: &str = inc
    
fn ast_from_graphql_and_json_produce_the_same_schema() {
    let json: graphql_introspection_query::introspection_response::IntrospectionResponse =
        serde_json::from_str(SCHEMA_JSON).unwrap();
    let graphql_parser_schema = graphql_parser::parse_schema(SCHEMA_GRAPHQL)
        .unwrap()
        .into_static();
    let mut json = Schema::from(json);
    let mut gql = Schema::from(graphql_parser_schema);

    assert!(vecs_match(&json.stored_scalars, &gql.stored_scalars));

    // Root objects
    {
        assert_eq!(
            json.get_object(json.query_type()).name,
            gql.get_object(gql.query_type()).name
        );
        assert_eq!(
            json.mutation_type().map(|t| &json.get_object(t).name),
            gql.mutation_type().map(|t| &gql.get_object(t).name),
            "Mutation types don't match."
        );
        assert_eq!(
            json.subscription_type().map(|t| &json.get_object(t).name),
            gql.subscription_type().map(|t| &gql.get_object(t).name),
            "Subscription types don't match."
        );
    }

    // Objects
    {
        let mut json_stored_objects: Vec<_> = json
            .stored_objects
            .drain(..)
            .filter(|obj| !obj.name.starts_with("__"))
            .collect();

        assert_eq!(
            json_stored_objects.len(),
            gql.stored_objects.len(),
            "Objects count matches."
        );

        json_stored_objects.sort_by(|a, b| a.name.cmp(&b.name));
        gql.stored_objects.sort_by(|a, b| a.name.cmp(&b.name));

        for (j, g) in json_stored_objects
            .iter_mut()
            .filter(|obj| !obj.name.starts_with("__"))
            .zip(gql.stored_objects.iter_mut())
        {
            assert_eq!(j.name, g.name);
            assert_eq!(
                j.implements_interfaces.len(),
                g.implements_interfaces.len(),
                "{}",
                j.name
            );
            assert_eq!(j.fields.len(), g.fields.len(), "{}", j.name);
        }
    }

    // Unions
    {
        assert_eq!(json.stored_unions.len(), gql.stored_unions.len());

        json.stored_unions.sort_by(|a, b| a.name.cmp(&b.name));
        gql.stored_unions.sort_by(|a, b| a.name.cmp(&b.name));

        for (json, gql) in json.stored_unions.iter().zip(gql.stored_unions.iter()) {
            assert_eq!(json.variants.len(), gql.variants.len());
        }
    }

    // Interfaces
    {
        assert_eq!(json.stored_interfaces.len(), gql.stored_interfaces.len());

        json.stored_interfaces.sort_by(|a, b| a.name.cmp(&b.name));
        gql.stored_interfaces.sort_by(|a, b| a.name.cmp(&b.name));

        for (json, gql) in json
            .stored_interfaces
            .iter()
            .zip(gql.stored_interfaces.iter())
        {
            assert_eq!(json.fields.len(), gql.fields.len());
        }
    }

    // Input objects
    {
        json.stored_enums = json
            .stored_enums
            .drain(..)
            .filter(|enm| !enm.name.starts_with("__"))
            .collect();
        assert_eq!(json.stored_inputs.len(), gql.stored_inputs.len());

        json.stored_inputs.sort_by(|a, b| a.name.cmp(&b.name));
        gql.stored_inputs.sort_by(|a, b| a.name.cmp(&b.name));

        for (json, gql) in json.stored_inputs.iter().zip(gql.stored_inputs.iter()) {
            assert_eq!(json.fields.len(), gql.fields.len());
        }
    }

    // Enums
    {
        assert_eq!(json.stored_enums.len(), gql.stored_enums.len());

        json.stored_enums.sort_by(|a, b| a.name.cmp(&b.name));
        gql.stored_enums.sort_by(|a, b| a.name.cmp(&b.name));

        for (json, gql) in json.stored_enums.iter().zip(gql.stored_enums.iter()) {
            assert_eq!(json.variants.len(), gql.variants.len());
        }
    }
}