original_string: public function addParameter($parameters): self
      {
          $this->parameters = array_merge($this->parameters, (array) $parameters);
  
          return $this;
      }
code: public function addParameter($parameters): self
      {
          $this->parameters = array_merge($this->parameters, (array) $parameters);
  
          return $this;
      }
code_tokens: public function addParameter ( $ parameters ) : self { $ this -> parameters = array_merge ( $ this -> parameters , ( array ) $ parameters ) ; return $ this ; }
docstring: Add parameters to the message
  
  @param string|array $parameters Custom added parameters
docstring_tokens: Add parameters to the message