title: How can I get a specific tag from array returned from Net::Amazon::EC2 decribe_tags?
body: <p>I'm using Net::Amazon::EC2 to get some information about my instances.</p>
  
  <p>I get all of the tags associated with an instance with:</p>
  
  <pre><code>my $tags = $ec2-&gt;describe_tags("Filter.Name" =&gt; "resource-id", "Filter.Value" =&gt; $instance_id);
  </code></pre>
  
  <p>According to the docs, this returns an array ref of <a href="http://search.cpan.org/~mallen/Net-Amazon-EC2-0.22/lib/Net/Amazon/EC2/DescribeTags.pm" rel="nofollow">DescribeTag</a> objects.</p>
  
  <p>I can iterate through the results:</p>
  
  <pre><code>foreach my $tag (@$tags) {
      print $tag-&gt;key . " = " . $tag-&gt;value . "\n";
  }
  </code></pre>
  
  <p>Is there a way I can get a tag with a specific key?</p>