assertEquals(newArrayList("c", "d", "e"), newArrayList(skip(set, 2)));
    assertEquals("[c, d, e]", skip(set, 2).toString());
  }

  public void testSkip_simpleList() {
    Collection<String> list = newArrayList("a", "b", "c", "d", "e");
    assertEquals(newArrayList("c", "d", "e"), newArrayList(skip(list, 2)));
    assertEquals("[c, d, e]", skip(list, 2).toString());
  }

    assertEquals(newArrayList("c", "d", "e"), newArrayList(skip(set, 2)));
    assertEquals("[c, d, e]", skip(set, 2).toString());
  }

  public void testSkip_simpleList() {
    Collection<String> list = newArrayList("a", "b", "c", "d", "e");
    assertEquals(newArrayList("c", "d", "e"), newArrayList(skip(list, 2)));
    assertEquals("[c, d, e]", skip(list, 2).toString());
  }

 * cannot override this binding. This is because the lookup is always short-circuited in this
 * specific situation (plain @Inject request, and plain explicit binding for the same type.)
 *
 * The simplest solution is to use a custom @Named here so it isn't bound under the plain key.
 * This is only necessary for default components using @Typed that want to support overriding.
 *

This, of course, is not optimal and you wouldn't use it for production.

In production you would have one of the options above.

But it's the simplest way to focus on the server-side of WebSockets and have a working example:

```Python hl_lines="2  6-38  41-43"
{!../../../docs_src/websockets/tutorial001.py!}
```

## Create a `websocket`

# First Steps

The simplest FastAPI file could look like this:

```Python
{!../../../docs_src/first_steps/tutorial001.py!}
```

Copy that to a file `main.py`.

Run the live server:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:single">main.py</u>
<font color="#3465A4">INFO    </font> Using path <font color="#3465A4">main.py</font>

    }
    return offset;
  }

  @J2ktIncompatible // serialization
  @GwtIncompatible // serialization
  Object writeReplace() {
    // We serialize by default to ImmutableList, the simplest thing that works.
    return new ImmutableList.SerializedForm(toArray());
  }

  @J2ktIncompatible // serialization
  private void readObject(ObjectInputStream stream) throws InvalidObjectException {

    }
    return offset;
  }

  @J2ktIncompatible // serialization
  @GwtIncompatible // serialization
  Object writeReplace() {
    // We serialize by default to ImmutableList, the simplest thing that works.
    return new ImmutableList.SerializedForm(toArray());
  }

  @J2ktIncompatible // serialization
  private void readObject(ObjectInputStream stream) throws InvalidObjectException {

### In a Remote Server

When you set up a remote server (a cloud server, a virtual machine, etc.) the simplest thing you can do is to use `fastapi run`, Uvicorn (or similar) manually, the same way you do when developing locally.

And it will work and will be useful **during development**.

If you can use the **latest versions of Python**, use the examples for the latest version, those will have the **best and simplest syntax**, for example, "**Python 3.10+**".

#### List

For example, let's define a variable to be a `list` of `str`.

=== "Python 3.9+"

    Declare the variable, with the same colon (`:`) syntax.

  //
  // A consequence of these requirements is that the delegate futures cannot be stored in
  // final fields.
  //
  // For simplicity the rest of this description will discuss Futures.catching since it is the
  // simplest instance, though very similar descriptions apply to many other classes in this file.
  //
  // In the constructor of AbstractCatchingFuture, the delegate future is assigned to a field