}
	if err := ps.Subscribe(MaskAll, ch2, doneCh2, nil); err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	close(doneCh1)
	// Allow for the above statement to take effect.
	time.Sleep(100 * time.Millisecond)
	ps.Lock()
	if len(ps.subs) != 1 {
		t.Fatal("expected 1 subscriber")
	}
	ps.Unlock()
	close(doneCh2)
}

type maskString string

func (m maskString) Mask() uint64 {

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and install `websockets`:

<div class="termy">

```console
$ pip install websockets

---> 100%
```

</div>

## WebSockets client

### In production

In your production system, you probably have a frontend created with a modern framework like React, Vue.js or Angular.

## 安裝 FastAPI

第一步是安裝 FastAPI。

確保你建立一個[虛擬環境](../virtual-environments.md){.internal-link target=_blank}，啟用它，然後**安裝 FastAPI**：

<div class="termy">

```console
$ pip install "fastapi[standard]"

---> 100%
```

</div>

/// note

當你使用 `pip install "fastapi[standard]"` 安裝時，會包含一些預設的可選標準相依項。

如果你不想包含那些可選的相依項，你可以使用 `pip install fastapi` 來安裝。

///

## 進階使用者指南

還有一個**進階使用者指南**你可以稍後閱讀。

   * such as "::c000:201".
   *
   * @param ip {@link InetAddress} to be converted to an address string
   * @return {@code String} containing the text-formatted IP address
   * @since 10.0
   */
  public static String toAddrString(InetAddress ip) {
    checkNotNull(ip);
    if (ip instanceof Inet4Address) {
      // For IPv4, Java's formatting is good enough.

        },
        "overrides": []
      },
      "gridPos": {
        "h": 4,
        "w": 8,
        "x": 0,
        "y": 4
      },
      "id": 12,
      "links": [],
      "maxDataPoints": 100,
      "options": {
        "colorMode": "none",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "horizontal",
        "reduceOptions": {
          "calcs": [

  EXPECT_EQ(0, TF_OperationNumControlOutputs(feed));
  EXPECT_EQ(0, TF_OperationGetControlOutputs(feed, control_ops, 100));

  EXPECT_EQ(0, TF_OperationNumControlInputs(neg));
  EXPECT_EQ(0, TF_OperationGetControlInputs(neg, control_ops, 100));
  EXPECT_EQ(0, TF_OperationNumControlOutputs(neg));
  EXPECT_EQ(0, TF_OperationGetControlOutputs(neg, control_ops, 100));

            try {
                String prefix = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
                int n = getContext().getConfig().getMaximumBufferSize() / 100;
                for ( int i = 0; i < n; i++ ) {
                    try ( SmbResource c = f.resolve(String.format("%s%d.tmp", prefix, i)) ) {
                        c.createNewFile();
                    }

    @Resource
    private Client client;

    protected int sizeForDelete = 100;
    protected String scrollForDelete = "1m";
    protected int sizeForCursor = 100;
    protected String scrollForCursor = "1m";
    protected String searchTimeout = "3m";
    protected String indexTimeout = "3m";
    protected String scrollSearchTimeout = "3m";

    @Resource
    private Client client;

    protected int sizeForDelete = 100;
    protected String scrollForDelete = "1m";
    protected int sizeForCursor = 100;
    protected String scrollForCursor = "1m";
    protected String searchTimeout = "3m";
    protected String indexTimeout = "3m";
    protected String scrollSearchTimeout = "3m";

- <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> ডেটা অংশগুলির জন্য.

## ইনস্টলেশন প্রক্রিয়া

<div class="termy">

```console
$ pip install fastapi

---> 100%
```

</div>