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<section>
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<section class="section">
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<h1>ConcatenatingLogFormatter</h1>
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<div class="declaration">
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<div class="language">
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<pre class="highlight"><code><span class="n">open</span> <span class="kd">class</span> <span class="kt">ConcatenatingLogFormatter</span><span class="p">:</span> <span class="kt"><a href="../Protocols/LogFormatter.html">LogFormatter</a></span></code></pre>
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</div>
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</div>
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<p>The <code>ConcatenatingLogFormatter</code> lets you combine the output of multiple
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<code><a href="../Protocols/LogFormatter.html">LogFormatter</a></code>s by concatenating their output and returning the result.</p>
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</section>
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<div class="task-group">
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<ul>
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<li class="item">
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<div>
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<code>
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<a name="/s:15CleanroomLogger25ConcatenatingLogFormatterC10formattersSayAA0dE0_pGv"></a>
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<a name="//apple_ref/swift/Property/formatters" class="dashAnchor"></a>
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<a class="token" href="#/s:15CleanroomLogger25ConcatenatingLogFormatterC10formattersSayAA0dE0_pGv">formatters</a>
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</code>
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</div>
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<div class="height-container">
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<div class="pointer-container"></div>
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<section class="section">
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<div class="pointer"></div>
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<div class="abstract">
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<p>The <code><a href="../Protocols/LogFormatter.html">LogFormatter</a></code>s whose output will be concatenated.</p>
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</div>
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<div class="declaration">
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<h4>Declaration</h4>
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<div class="language">
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<p class="aside-title">Swift</p>
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<pre class="highlight"><code><span class="n">open</span> <span class="k">let</span> <span class="nv">formatters</span><span class="p">:</span> <span class="p">[</span><span class="kt"><a href="../Protocols/LogFormatter.html">LogFormatter</a></span><span class="p">]</span></code></pre>
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</div>
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</div>
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</section>
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</div>
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</li>
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<li class="item">
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<div>
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<code>
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<a name="/s:15CleanroomLogger25ConcatenatingLogFormatterC8hardFailSbv"></a>
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<a name="//apple_ref/swift/Property/hardFail" class="dashAnchor"></a>
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<a class="token" href="#/s:15CleanroomLogger25ConcatenatingLogFormatterC8hardFailSbv">hardFail</a>
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</code>
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</div>
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<div class="height-container">
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<div class="pointer-container"></div>
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<section class="section">
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<div class="pointer"></div>
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<div class="abstract">
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<p>Determines the behavior of <code><a href="../Classes/ConcatenatingLogFormatter.html#/s:15CleanroomLogger25ConcatenatingLogFormatterC6formatSSSgAA0D5EntryVF">format(_:)</a></code> when one of the receiver’s
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<code><a href="../Classes/ConcatenatingLogFormatter.html#/s:15CleanroomLogger25ConcatenatingLogFormatterC10formattersSayAA0dE0_pGv">formatters</a></code> returns <code>nil</code>. When <code>false</code>, if any formatter returns
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<code>nil</code>, it is simply excluded from the concatenation, but formatting
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continues. Unless <em>none</em> of the <code><a href="../Classes/ConcatenatingLogFormatter.html#/s:15CleanroomLogger25ConcatenatingLogFormatterC10formattersSayAA0dE0_pGv">formatters</a></code> returns a string, the
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receiver will always return a non-<code>nil</code> value. However, when <code>hardFail</code>
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is <code>true</code>, <em>all</em> of the <code><a href="../Classes/ConcatenatingLogFormatter.html#/s:15CleanroomLogger25ConcatenatingLogFormatterC10formattersSayAA0dE0_pGv">formatters</a></code> must return strings; if <em>any</em>
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formatter returns <code>nil</code>, the receiver <em>also</em> returns <code>nil</code>.</p>
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</div>
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<div class="declaration">
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<h4>Declaration</h4>
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<div class="language">
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<p class="aside-title">Swift</p>
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<pre class="highlight"><code><span class="n">open</span> <span class="k">let</span> <span class="nv">hardFail</span><span class="p">:</span> <span class="kt">Bool</span></code></pre>
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</div>
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</div>
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</section>
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</div>
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</li>
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<li class="item">
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<div>
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<code>
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<a name="/s:15CleanroomLogger25ConcatenatingLogFormatterCACSayAA0dE0_pG10formatters_Sb8hardFailtcfc"></a>
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<a name="//apple_ref/swift/Method/init(formatters:hardFail:)" class="dashAnchor"></a>
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<a class="token" href="#/s:15CleanroomLogger25ConcatenatingLogFormatterCACSayAA0dE0_pG10formatters_Sb8hardFailtcfc">init(formatters:hardFail:)</a>
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</code>
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</div>
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<div class="height-container">
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<div class="pointer-container"></div>
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<section class="section">
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<div class="pointer"></div>
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<div class="abstract">
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<p>Initializes a new <code>ConcatenatingLogFormatter</code> instance.</p>
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</div>
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<div class="declaration">
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<h4>Declaration</h4>
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<div class="language">
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<p class="aside-title">Swift</p>
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<pre class="highlight"><code><span class="kd">public</span> <span class="nf">init</span><span class="p">(</span><span class="nv">formatters</span><span class="p">:</span> <span class="p">[</span><span class="kt"><a href="../Protocols/LogFormatter.html">LogFormatter</a></span><span class="p">],</span> <span class="nv">hardFail</span><span class="p">:</span> <span class="kt">Bool</span> <span class="o">=</span> <span class="kc">false</span><span class="p">)</span></code></pre>
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</div>
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</div>
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<div>
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<h4>Parameters</h4>
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<table class="graybox">
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<tbody>
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<tr>
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<td>
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<code>
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<em>formatters</em>
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</code>
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</td>
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<td>
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<div>
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<p>The <code>LogFormatter</code>s whose output will be
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concatenated.</p>
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</div>
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</td>
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</tr>
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<tr>
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<td>
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<code>
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<em>hardFail</em>
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</code>
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</td>
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<td>
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<div>
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<p>Determines the behavior of <code>format(_:)</code> when one of
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the receiver’s <code>formatters</code> returns <code>nil</code>. When <code>false</code>, if any formatter
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returns <code>nil</code>, it is simply excluded from the concatenation, but formatting
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continues. Unless <em>none</em> of the <code>formatters</code> returns a string, the
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receiver will always return a non-<code>nil</code> value. However, when <code>hardFail</code>
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is <code>true</code>, <em>all</em> of the <code>formatters</code> must return strings; if <em>any</em>
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formatter returns <code>nil</code>, the receiver <em>also</em> returns <code>nil</code>.</p>
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</div>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</section>
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</div>
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</li>
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<li class="item">
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<div>
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<code>
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<a name="/s:15CleanroomLogger25ConcatenatingLogFormatterC6formatSSSgAA0D5EntryVF"></a>
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<a name="//apple_ref/swift/Method/format(_:)" class="dashAnchor"></a>
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<a class="token" href="#/s:15CleanroomLogger25ConcatenatingLogFormatterC6formatSSSgAA0D5EntryVF">format(_:)</a>
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</code>
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</div>
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<div class="height-container">
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<div class="pointer-container"></div>
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<section class="section">
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<div class="pointer"></div>
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<div class="abstract">
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<p>Formats the <code><a href="../Structs/LogEntry.html">LogEntry</a></code> by passing it to each of the receiver’s
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<code><a href="../Protocols/LogFormatter.html">LogFormatter</a></code>s and concatenating the output.</p>
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</div>
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<div class="declaration">
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<h4>Declaration</h4>
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<div class="language">
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<p class="aside-title">Swift</p>
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<pre class="highlight"><code><span class="n">open</span> <span class="kd">func</span> <span class="nf">format</span><span class="p">(</span><span class="n">_</span> <span class="nv">entry</span><span class="p">:</span> <span class="kt"><a href="../Structs/LogEntry.html">LogEntry</a></span><span class="p">)</span>
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<span class="o">-></span> <span class="kt">String</span><span class="p">?</span></code></pre>
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</div>
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</div>
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<div>
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<h4>Parameters</h4>
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<table class="graybox">
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<tbody>
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<tr>
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<td>
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<code>
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<em>entry</em>
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</code>
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</td>
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<td>
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<div>
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<p>The <code>LogEntry</code> to be formatted.</p>
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</div>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div>
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<h4>Return Value</h4>
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<p>The formatted result, or <code>nil</code> if formatting failed according
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to the receiver’s <code><a href="../Classes/ConcatenatingLogFormatter.html#/s:15CleanroomLogger25ConcatenatingLogFormatterC8hardFailSbv">hardFail</a></code> property.</p>
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</div>
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||
</section>
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</div>
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