title: How to implement "IN" clause with Dapper Extensions Predicate?
body: <p>I want to replace this query using Dapper Extensions Predicate?</p>
  
  <pre><code>SELECT * 
  FROM SomeTable 
  WHERE id IN (commaSeparatedListOfIDs)
  </code></pre>
  
  <p>The <code>commaSeparatedListOfIDs</code> is an <code>IEnumerable</code> of <code>Integer</code>.</p>
  
  <p>What I have tried so far:</p>
  
  <pre><code>using (SqlConnection cn = new SqlConnection(_connectionString))
  {
      cn.Open();
      var predicate = Predicates.Field&lt;SomeTable&gt;(f =&gt; f.Id, Operator.???, commaSeparatedListOfIDs);
      IEnumerable&lt;SomeTable&gt; list = cn.GetList&lt;SomeTable&gt;(predicate);
      cn.Close();
  }
  </code></pre>
  
  <p>I need an operator <code>Operator.In</code>, but it does not exists in Dapper Extensions.</p>
  
  <p>How should I implement "IN" clause with Dapper Extensions Predicate system?</p>