original_string: public function translate($key, $defaultValue = '', $locale = null) {
  		return $this->translation->translate($key, $defaultValue, $locale);
  	}
code: public function translate($key, $defaultValue = '', $locale = null) {
  		return $this->translation->translate($key, $defaultValue, $locale);
  	}
code_tokens: public function translate ( $ key , $ defaultValue = '' , $ locale = null ) { return $ this -> translation -> translate ( $ key , $ defaultValue , $ locale ) ; }
docstring: Helper function for translation.
  
  @param string $key
  @param string $defaultValue
  @param string $locale
  @return string
docstring_tokens: Helper function for translation .