original_string: private function getCacheKey(Request $request)
      {
          if (isset($this->keyCache[$request])) {
              return $this->keyCache[$request];
          }
  
          return $this->keyCache[$request] = $this->generateCacheKey($request);
      }
code: private function getCacheKey(Request $request)
      {
          if (isset($this->keyCache[$request])) {
              return $this->keyCache[$request];
          }
  
          return $this->keyCache[$request] = $this->generateCacheKey($request);
      }
code_tokens: private function getCacheKey ( Request $ request ) { if ( isset ( $ this -> keyCache [ $ request ] ) ) { return $ this -> keyCache [ $ request ] ; } return $ this -> keyCache [ $ request ] = $ this -> generateCacheKey ( $ request ) ; }
docstring: Returns a cache key for the given Request.
  
  @return string A key for the given Request
docstring_tokens: Returns a cache key for the given Request .