in

# File activerecord/lib/arel/predications.rb, line 65
    def in(other)
      case other
      when Arel::SelectManager
        Arel::Nodes::In.new(self, other.ast)
      when Enumerable
        Nodes::In.new self, quoted_array(other)
      else
        Nodes::In.new self, quoted_node(other)
      end
    end