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<?php
namespace RectorPrefix202209\React\Stream;
/**
* The `DuplexStreamInterface` is responsible for providing an interface for
* duplex streams (both readable and writable).
*
* It builds on top of the existing interfaces for readable and writable streams
* and follows the exact same method and event semantics.
* If you're new to this concept, you should look into the
* `ReadableStreamInterface` and `WritableStreamInterface` first.
*
* Besides defining a few methods, this interface also implements the
* `EventEmitterInterface` which allows you to react to the same events defined
* on the `ReadbleStreamInterface` and `WritableStreamInterface`.
*
* The event callback functions MUST be a valid `callable` that obeys strict
* parameter definitions and MUST accept event parameters exactly as documented.
* The event callback functions MUST NOT throw an `Exception`.
* The return value of the event callback functions will be ignored and has no
* effect, so for performance reasons you're recommended to not return any
* excessive data structures.
*
* Every implementation of this interface MUST follow these event semantics in
* order to be considered a well-behaving stream.
*
* > Note that higher-level implementations of this interface may choose to
* define additional events with dedicated semantics not defined as part of
* this low-level stream specification. Conformance with these event semantics
* is out of scope for this interface, so you may also have to refer to the
* documentation of such a higher-level implementation.
*
* @see ReadableStreamInterface
* @see WritableStreamInterface
*/
interface DuplexStreamInterface extends ReadableStreamInterface, WritableStreamInterface
{
}
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