Creating a search_form() tag in an ExpressionEngine module

mod.oktan_web

    public function search_form()
    {
        /** ----------------------------------------
        /**  Get action ID for redirect_search method
        /** ----------------------------------------*/
        $hidden['ACT'] = $this->EE->functions->fetch_action_id(get_class($this), 'redirect_search');

        /** ----------------------------------------
        /**  Return the final rendered form
        /** ----------------------------------------*/
        return $this->EE->functions->form_declaration(array('id' => 'search_form', 'hidden_fields' => $hidden))."\n" . $this->EE->TMPL->tagdata ."</form>";
    }