kw'>def</span> <span class='id identifier rubyid_valid?'>valid?</span>
  <span class='id identifier rubyid_warn'>warn</span> <span class='tstring'><span class='tstring_beg'>&#39;</span><span class='tstring_content'>[DEPRECATED] the `valid?` method is obsolete</span><span class='tstring_end'>&#39;</span></span>
  <span class='kw'>return</span> <span class='kw'>false</span> <span class='kw'>if</span> <span class='ivar'>@seed_id</span><span class='period'>.</span><span class='id identifier rubyid_nil?'>nil?</s