Represents a stream of data that can be written to.

Any class that implements this interface can be used by a Pump to pump data from a `ReadStream` to it.

no type hierarchy

- `WriteStream`
  - `StreamBase`

- `WriteStream`
  - `AsyncFile`
  - `HttpClientRequest`
  - `HttpServerResponse`
  - `MessageProducer`
  - `NetSocket`
  - `PacketWritestream`
  - `WebSocketBase`
    - `ServerWebSocket`
    - `WebSocket`

Inherited Attributes
Attributes inherited from: `Object` `hash`, `string`

Methods
`drainHandler` | `shared WriteStream<T> drainHandler(Anything()? handler)` Set a drain handler on the stream. If the write queue is full, then the handler will be called when the write queue has been reduced to maxSize / 2. See Pump for an example of this being used. Parameters: `handler` the handler
`end` | `shared void end()` Ends the stream. Once the stream has ended, it cannot be used any more.
`end` | `shared void end(T? t)` Same as end but writes some data to the stream before ending.
`exceptionHandler` | `shared WriteStream<T> exceptionHandler(Anything(Throwable)? handler)` Set an exception handler on the write stream. Parameters: `handler` the exception handler
`setWriteQueueMaxSize` | `shared WriteStream<T> setWriteQueueMaxSize(Integer maxSize)` Set the maximum size of the write queue to `maxSize`. You will still be able to write to the stream even if there is more than `maxSize` bytes in the write queue. This is used as an indicator by classes such as `Pump` to provide flow control. Parameters: `maxSize` the max size of the write stream
`write` | `shared WriteStream<T> write(T? data)` Write some data to the stream. The data is put on an internal write queue, and the write actually happens asynchronously. To avoid running out of memory by putting too much on the write queue, check the writeQueueFull method before writing. This is done automatically if using a Pump. Parameters: `data` the data to write
`writeQueueFull` | `shared Boolean writeQueueFull()` This will return `true` if there are more bytes in the write queue than the value set using setWriteQueueMaxSize

Inherited Methods
Methods inherited from: `Object` `equals`
Methods inherited from: `StreamBase` `exceptionHandler()`