* opening the data stream.
   *
   * <p>The default implementation returns {@link Optional#absent}. Some sources, such as a file,
   * may return a non-absent value. Note that in such cases, it is <i>possible</i> that this method
   * will return a different number of bytes than would be returned by reading all of the bytes (for

    // TODO(user): This is not the most efficient way to handle generic
    // arrays, but is there another way to extract the array class in a
    // non-hacky way (i.e. using String value class names- "[L...")?
    return Array.newInstance(componentType, 0).getClass();
  }

  // TODO(benyu): Once behavior is the same for all Java versions we support, delete this.
  enum JavaVersion {
    JAVA6 {

    The only difference between `OAuth2PasswordRequestFormStrict` and
    `OAuth2PasswordRequestForm` is that `OAuth2PasswordRequestFormStrict` requires the
    client to send the form field `grant_type` with the value `"password"`, which
    is required in the OAuth2 specification (it seems that for no particular reason),
    while for `OAuth2PasswordRequestForm` `grant_type` is optional.

    Read more about it in the

func (lc Lifecycle) Eval(obj ObjectOpts) Event {
	return lc.eval(obj, time.Now().UTC())
}

// eval returns the lifecycle event applicable at the given now. If now is the
// zero value of time.Time, it returns the upcoming lifecycle event.
func (lc Lifecycle) eval(obj ObjectOpts, now time.Time) Event {
	var events []Event
	if obj.ModTime.IsZero() {
		return Event{}
	}

	if err := tw.writeRawHeader(&tw.blk, int64(len(data)), flag); err != nil {
		return err
	}
	_, err := io.WriteString(tw, data)
	return err
}

// writeRawHeader writes the value of blk, regardless of its value.
// It sets up the Writer such that it can accept a file of the given size.
// If the flag is a special header-only flag, then the size is treated as zero.

	// Dealing with error returns from close() - 'man 2 close'
	//
	// A careful programmer will check the return value of close(), since it is quite possible that
	// errors on a previous write(2) operation are reported only on the final close() that releases
	// the open file descriptor.
	//
	// Failing to check the return value when closing a file may lead to silent loss of data.
	// This can especially be observed with NFS and with disk quota.

pkg net/http/httptest, method (*Server) Certificate() *x509.Certificate
pkg net/http/httptest, method (*Server) Client() *http.Client
pkg reflect, func MakeMapWithSize(Type, int) Value
pkg runtime/pprof, func Do(context.Context, LabelSet, func(context.Context))
pkg runtime/pprof, func ForLabels(context.Context, func(string, string) bool)
pkg runtime/pprof, func Label(context.Context, string) (string, bool)

            "description": "Production environment"
        }
    ],
    "paths": {
            // More stuff here
    }
}
```

/// tip

Notice the auto-generated server with a `url` value of `/api/v1`, taken from the `root_path`.

///

In the docs UI at <a href="http://127.0.0.1:9999/api/v1/docs" class="external-link" target="_blank">http://127.0.0.1:9999/api/v1/docs</a> it would look like:

}

my_second_user: User = User(**second_user_data)
```

/// info

`**second_user_data` nghĩa là:

Truyền các khóa và giá trị của dict `second_user_data` trực tiếp như các tham số kiểu key-value, tương đương với: `User(id=4, name="Mary", joined="2018-11-30")`

///

### Được hỗ trợ từ các trình soạn thảo

    "id": 4,
    "name": "Mary",
    "joined": "2018-11-30",
}

my_second_user: User = User(**second_user_data)
```


/// info

`**second_user_data` 意思是:

直接将`second_user_data`字典的键和值直接作为key-value参数传递，等同于：`User(id=4, name="Mary", joined="2018-11-30")`

///

### 编辑器支持

整个框架都被设计得易于使用且直观，所有的决定都在开发之前就在多个编辑器上进行了测试，来确保最佳的开发体验。