original_string: public function checked($checked = [])
      {
          if ($checked instanceof Arrayable) {
              $checked = $checked->toArray();
          }
  
          $this->checked = array_merge($this->checked, $checked);
  
          return $this;
      }
code: public function checked($checked = [])
      {
          if ($checked instanceof Arrayable) {
              $checked = $checked->toArray();
          }
  
          $this->checked = array_merge($this->checked, $checked);
  
          return $this;
      }
code_tokens: public function checked ( $ checked = [ ] ) { if ( $ checked instanceof Arrayable ) { $ checked = $ checked -> toArray ( ) ; } $ this -> checked = array_merge ( $ this -> checked , $ checked ) ; return $ this ; }
docstring: Set the field option checked.
  
  @param array $checked
  
  @return $this
docstring_tokens: Set the field option checked .