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<title>display_name= (RMail::Address)</title>
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<pre><span class="cmt"># File lib/rmail/address.rb, line 134</span>
<span class="kw">def</span> display_name=(str)
<span class="kw">unless</span> str.nil? || str.kind_of?(String)
raise ArgumentError, <span class="str">'not a string'</span>
<span class="kw">end</span>
@display_name = str
@display_name = <span class="kw">nil</span> <span class="kw">if</span> @display_name == <span class="str">''</span>
<span class="kw">end</span></pre>
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