original_string: public function nonce_field($key = '_wpnonce', $referrer = false, $echo = true){
          return wp_nonce_field($this->action, $key, $referrer, $echo);
      }
code: public function nonce_field($key = '_wpnonce', $referrer = false, $echo = true){
          return wp_nonce_field($this->action, $key, $referrer, $echo);
      }
code_tokens: public function nonce_field ( $ key = '_wpnonce' , $ referrer = false , $ echo = true ) { return wp_nonce_field ( $ this -> action , $ key , $ referrer , $ echo ) ; }
docstring: Echo nonce field
  
  @param string $key Default _wpnonce
  @param bool $referrer Default false.
  @param bool $echo Default true
  @return string
docstring_tokens: Echo nonce field