<pre class="syntax-highlighting" lang="rust"><code><span class="source rust"><span class="meta function rust"><span class="meta function rust"><span class="storage type function rust">fn</span> </span><span class="entity name function rust">hello</span></span><span class="meta function rust"><span class="meta function parameters rust"><span class="punctuation section parameters begin rust">(</span></span><span class="meta function rust"><span class="meta function parameters rust"><span class="punctuation section parameters end rust">)</span></span></span></span><span class="punctuation terminator rust">;</span>
</span></code></pre>

```rust
fn hello();
```

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<pre class="syntax-highlighting"><code class="language-rust"><span class="source rust"><span class="meta function rust"><span class="meta function rust"><span class="storage type function rust">fn</span> </span><span class="entity name function rust">hello</span></span><span class="meta function rust"><span class="meta function parameters rust"><span class="punctuation section parameters begin rust">(</span></span><span class="meta function rust"><span class="meta function parameters rust"><span class="punctuation section parameters end rust">)</span></span></span></span><span class="punctuation terminator rust">;</span>
</span></code></pre>

```rust
fn hello();
```

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<pre class="syntax-highlighting" data-meta="extra info" lang="rust"><code><span class="source rust"><span class="meta function rust"><span class="meta function rust"><span class="storage type function rust">fn</span> </span><span class="entity name function rust">hello</span></span><span class="meta function rust"><span class="meta function parameters rust"><span class="punctuation section parameters begin rust">(</span></span><span class="meta function rust"><span class="meta function parameters rust"><span class="punctuation section parameters end rust">)</span></span></span></span><span class="punctuation terminator rust">;</span>
</span></code></pre>

```rust extra info
fn hello();
```

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