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  <title>provides (Contract)</title>
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  <pre><span class="ruby-comment cmt"># File lib/contract/assertions.rb, line 29</span>
  <span class="ruby-keyword kw">def</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">provides</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">symbols</span>, <span class="ruby-operator">&amp;</span><span class="ruby-identifier">block</span>)
    <span class="ruby-identifier">symbols</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">symbol</span><span class="ruby-operator">|</span>
      <span class="ruby-identifier">define_method</span>(<span class="ruby-node">&quot;test_provides_#{symbol}&quot;</span><span class="ruby-node">&quot;test_provides_#{symbol}&quot;</span>) <span class="ruby-keyword kw">do</span>
        <span class="ruby-identifier">assert_respond_to</span>(<span class="ruby-ivar">@object</span>, <span class="ruby-identifier">symbol</span>)
        <span class="ruby-identifier">instance_eval</span>(<span class="ruby-operator">&amp;</span><span class="ruby-identifier">block</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">block</span>
      <span class="ruby-keyword kw">end</span>
    <span class="ruby-keyword kw">end</span>
  <span class="ruby-keyword kw">end</span></pre>
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