This will take microseconds and will only happen at startup.

    So it won't affect performance. ⚡

### Include an `APIRouter` with a custom `prefix`, `tags`, `responses`, and `dependencies`

Now, let's imagine your organization gave you the `app/internal/admin.py` file.

It contains an `APIRouter` with some admin *path operations* that your organization shares between several projects.

  //
  // TODO(user): Change API to make it impossible to use a Guard with the "wrong" monitor,
  //    by making the monitor implicit, and to eliminate other sources of IMSE.
  //    Imagine:
  //    guard.lock();
  //    try { /* monitor locked and guard satisfied here */ }
  //    finally { guard.unlock(); }
  // Here are Justin's design notes about this:
  //

To build on Linux, install a compatible version of GCC or Clang.
The {cpp} plugins will discover GCC or Clang using the system PATH.

[[sec:custom_cpp_source_set_paths]]
=== Customizing file and directory locations

Imagine you have a legacy library project that uses an _src_ directory for the production code and private headers and _include_ directory for exported headers.

- You can supply any type implementing link:{groovyDslPath}/org.gradle.api.artifacts.transform.TransformAction.html[TransformAction] to the `registerTransform()` method.

For example, imagine you want to unpack some dependencies and put the unpacked directories and files on the classpath.
You can do so by registering an artifact transform action of type `Unzip`, as shown here:

        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="13"
    {!> ../../../docs_src/query_params_str_validations/tutorial008.py!}
    ```

## Alias parameters

Imagine that you want the parameter to be `item-query`.

Like in:

```
http://127.0.0.1:8000/items/?item-query=foobaritems
```

But `item-query` is not a valid Python variable name.

[[sec:custom_java_source_set_paths]]
=== Customizing file and directory locations

+
You can also specify a regular dependency on a POM-only publication.
In this case, the dependencies declared in that POM are treated as normal transitive dependencies of the build.
+
For example, imagine you want to use the `groovy-all` POM for your tests.
It's a POM-only publication that has its own dependencies listed inside a `<dependencies>` block.
The appropriate configuration in the Gradle build looks like this:
+

Often, this is because you refer directly to the output file of another task instead of using the task directly as an input.

For example, imagine that you have a task which takes a `ConfigurableFileCollection` as an input and that you have declared a dependency on the `jar` task using this:

```
someTask {
    inputFile.from(jar.archivePath)
}
```

```

Nó là một thứ khác.

Chúng ta sử dụng dấu hai chấm (`:`), không phải dấu bằng (`=`).

Và việc thêm gợi ý kiểu dữ liệu không làm thay đổi những gì xảy ra so với khi chưa thêm chúng.

But now, imagine you are again in the middle of creating that function, but with type hints.

Tại cùng một điểm, bạn thử kích hoạt autocomplete với `Ctrl+Space` và bạn thấy:

<img src="/img/python-types/image02.png">

* Nested values
+
Custom types that don’t conform to the other two categories but have their own properties that are inputs or outputs. In effect, the task inputs or outputs are nested inside these custom types.

As an example, imagine you have a task that processes templates of varying types, such as FreeMarker, Velocity, Moustache, etc. It takes template source files and combines them with some model data to generate populated versions of the template files.