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         	<h1 class="section-header">Fiber</h1><hr>
         				
			<p class="section-content">
			A Fibers (or coroutine as called in other languages) are special functions that can be interrupted at any time by the user. When a conventional function is invoked, execution begins at the start, and once a function exits, it is finished. By contrast, Fibers can exit by calling other Fibers, which may later return to the point where they were invoked in the original coroutine:
			</p>
			<pre><code class="swift">
	func main() {
		var fiber = Fiber.create({
			System.print("fiber 1");
			Fiber.yield()
			System.print("fiber 2");
		});
	
		System.print("main 1");
		fiber()
		System.print("main 2");
		fiber()
		System.print("main 3");
	}
	// Output:
	// main 1
	// fiber 1
	// main 2
	// fiber 2
	// main 3
			</code></pre>
			<p>TO DO: more explanations and examples</p>
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