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: tasks_expander_test.rs
    path of file: ./repos/moon/nextgen/project-expander/tests
    
    the code of the file until where you have to start completion: mod utils;

use moon_common::path::WorkspaceRelativePathBuf;
use moon_common::Id;
use moon_config::{DependencyConfig, InputPath, OutputPath, TaskArgs, TaskDependencyConfig};
use moon_project::Project;
use moon_project_expander::TasksExpander;
use moon_task::Target;
use rustc_hash::{FxHashMap, Fx
    
            fn skip_missing_self_targets() {
                let sandbox = create_empty_sandbox();
                let project = create_project_with_tasks(sandbox.path(), "project");
                let query = QueryContainer::new(sandbox.path());

                let mut task = create_task();

                task.deps.push(TaskDependencyConfig {
                    args: TaskArgs::None,
                    env: FxHashMap::from_iter([]),
                    target: Target::parse("do-not-exist").unwrap(),
                    optional: Some(true),
                });

                let context =
                    create_context_with_query(&project, sandbox.path(), |i| query.filtered(i));
                TasksExpander::new(&context).expand_deps(&mut task).unwrap();

                assert_eq!(task.deps, vec![]);
            }