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: order_by_nulls.rs
    path of file: ./repos/prisma-engines/query-engine/connector-test-kit-rs/query-engine-tests/tests/queries/order_and_pagination
    
    the code of the file until where you have to start completion: use query_engine_tests::*;

#[test_suite(schema(schema), capabilities(OrderByNullsFirstLast))]
mod order_by_nulls {
    use indoc::indoc;
    use query_engine_tests::{assert_error, run_query};

    fn schema() -> String {
        let schema = indoc! {
            r#"model TestModel {
                #id(id, Int, @id)
                uniq   Int @unique
                name   String?
                age    Int?
            }"#
        };

        schema.to_owned()
   
    
    async fn simple_nulls_first(runner: Runner) -> TestResult<()> {
        create_test_data(&runner).await?;

        insta::assert_snapshot!(
          run_query!(runner, r#"{
            findManyTestModel(orderBy: { name: { sort: asc, nulls: first } }) {
              id
              name
            }
          }"#),
          @r###"{"data":{"findManyTestModel":[{"id":3,"name":null},{"id":4,"name":null},{"id":1,"name":"A"},{"id":2,"name":"B"}]}}"###
        );

        insta::assert_snapshot!(
          run_query!(runner, r#"{
            findManyTestModel(orderBy: { name: { sort: desc, nulls: first } }) {
              id
              name
            }
          }"#),
          @r###"{"data":{"findManyTestModel":[{"id":3,"name":null},{"id":4,"name":null},{"id":2,"name":"B"},{"id":1,"name":"A"}]}}"###
        );

        Ok(())
    }