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<title>media_type (RMail::Header)</title>
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<pre><span class="cmt"># File lib/rmail/header.rb, line 555</span>
<span class="kw">def</span> media_type(default = <span class="kw">nil</span>)
<span class="kw">if</span> value = content_type
value.split(<span class="str">'/'</span>)[0]
<span class="kw">else</span>
<span class="kw">if</span> block_given?
<span class="kw">yield</span>
<span class="kw">else</span>
default
<span class="kw">end</span>
<span class="kw">end</span>
<span class="kw">end</span></pre>
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