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: cm_plugin_run_custom_task_test.rs
    path of file: ./repos/cargo-make/src/lib/plugin/sdk
    
    the code of the file until where you have to start completion: use super::*;
use crate::plugin::runner;
use crate::plugin::types::{Plugin, Plugins};
use crate::test::create_empty_flow_info;
use crate::types::EnvValue;
use indexmap::IndexMap;

#[test]
fn run_valid() {
    let mut plugins = IndexMap::new();
    plugins.insert(
        "test".to_string(),
        Plugin {
            script: r#"
                value = get_env cm_plu
    
fn run_valid() {
    let mut plugins = IndexMap::new();
    plugins.insert(
        "test".to_string(),
        Plugin {
            script: r#"
                value = get_env cm_plugin_run_custom_task_test_valid_env
                assert_eq ${value} ""
                value = get_env cm_plugin_run_custom_task_test_valid_script
                assert_eq ${value} ""

                taskjson = json_parse ${task.as_json}
                taskjson.script = set "set_env cm_plugin_run_custom_task_test_valid_script yes"
                task_json = json_encode taskjson

                cm_plugin_run_custom_task ${task_json}

                value = get_env cm_plugin_run_custom_task_test_valid_env
                assert_eq ${value} 1
                value = get_env cm_plugin_run_custom_task_test_valid_script
                assert_eq ${value} yes

                set_env cm_plugin_run_custom_task_test_valid_plugin done
            "#
            .to_string(),
        },
    );

    let mut task = Task::new();
    task.plugin = Some("test".to_string());
    task.script_runner = Some("@duckscript".to_string());
    let mut env = IndexMap::new();
    env.insert(
        "cm_plugin_run_custom_task_test_valid_env".to_string(),
        EnvValue::Value("1".to_string()),
    );
    task.env = Some(env);

    let mut flow_info = create_empty_flow_info();
    flow_info
        .config
        .tasks
        .insert("test".to_string(), task.clone());
    flow_info.config.plugins = Some(Plugins {
        aliases: None,
        plugins,
    });

    assert!(!envmnt::exists("cm_plugin_run_custom_task_test_valid_env"));
    assert!(!envmnt::exists(
        "cm_plugin_run_custom_task_test_valid_script"
    ));
    assert!(!envmnt::exists(
        "cm_plugin_run_custom_task_test_valid_plugin"
    ));

    let done = runner::run_task(
        &flow_info,
        Rc::new(RefCell::new(FlowState::new())),
        &Step {
            name: "test".to_string(),
            config: task,
        },
        &RunTaskOptions {
            plugins_enabled: true,
        },
    );

    assert!(done);
    assert!(envmnt::is_equal(
        "cm_plugin_run_custom_task_test_valid_env",
        "1"
    ));
    assert!(envmnt::is_equal(
        "cm_plugin_run_custom_task_test_valid_script",
        "yes"
    ));
    assert!(envmnt::is_equal(
        "cm_plugin_run_custom_task_test_valid_plugin",
        "done"
    ));
}