Now, let's see the module at `app/main.py`.

Here's where you import and use the class `FastAPI`.

This will be the main file in your application that ties everything together.

And as most of your logic will now live in its own specific module, the main file will be quite simple.

### Import `FastAPI`

You import and create a `FastAPI` class as normally.

     * cancelled.
     */
    @CheckForNull Executor delegate;

    /**
     * Set before calling delegate.execute(); set to null once run, so that it can be GCed; this
     * object may live on after, if submitAsync returns an incomplete future.
     */
    @CheckForNull Runnable task;

    /** Thread that called execute(). Set in execute, cleared when delegate.execute() returns. */

# Những bước đầu tiên

Tệp tin FastAPI đơn giản nhất có thể trông như này:

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

Sao chép sang một tệp tin `main.py`.

Chạy live server:

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)

import org.junit.After;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for {@link StandardMutableValueGraph} and related functionality. */
// TODO(user): Expand coverage and move to proper test suite.
@RunWith(JUnit4.class)
public final class ValueGraphTest {
  private static final String DEFAULT = "default";

  MutableValueGraph<Integer, String> graph;

  @After

* Move HighWaterMark to the top of the struct in order to fix arm ([#33117](https://github.com/kubernetes/kubernetes/pull/33117), [@luxas](https://github.com/luxas))

      if (flags::Global().more_stack_traces.value()) {
        *graph_def.mutable_debug_info() = graph.BuildDebugInfo();
      }
      session->graph->mu.unlock();
      status->status = session->session->Extend(std::move(graph_def));
      if (!status->status.ok()) {
        // Contract is we always delete input_values[i].
        return false;
      }
      // Note: session->session is not modified if Extend() fails, so

# it easier to combine settings later.
selects.config_setting_group(
    name = "mobile",
    match_any = [
        ":android",
        ":chromiumos",
        # TODO(jakeharmon8): Move all platform configs to TSL with fuchsia (non-blocking)
        ":fuchsia",
        ":emscripten",
        ":ios",
    ],
    visibility = ["//visibility:public"],
)

config_setting(

   * greater than or equal to that.
   */
  private static int partition(double[] array, int from, int to) {
    // Select a pivot, and move it to the start of the slice i.e. to index from.
    movePivotToStartOfSlice(array, from, to);
    double pivot = array[from];

    // Move all elements with indexes in (from, to] which are greater than the pivot to the end of
    // the array. Keep track of where those elements begin.

	x := (*[2]uintptr)(unsafe.Pointer(&s))
	h := [3]uintptr{x[0], x[1], x[1]}
	buf := *(*[]byte)(unsafe.Pointer(&h))
	return r.Write(buf)
}

// Bytes returns all available read bytes.
// It does not move the read pointer and only copy the available data.
// If the dst is big enough it will be used as destination,
// otherwise a new buffer will be allocated.
func (r *RingBuffer) Bytes(dst []byte) []byte {
	r.mu.Lock()

     * @return random source to use
     */
    SecureRandom getRandom ();


    /**
     * 
     * 
     * Property <tt>jcifs.smb.client.dfs.ttl</tt> (int, default 300)
     * 
     * @return title to live, in seconds, for DFS cache entries
     */
    long getDfsTtl ();


    /**
     * 
     * Property <tt>jcifs.smb.client.dfs.strictView</tt> (boolean, default false)
     *