original_string: public function copy($from, $to)
      {
          return $this->filesystem->copy(
              $this->path($from),
              $this->path($to)
          );
      }
code: public function copy($from, $to)
      {
          return $this->filesystem->copy(
              $this->path($from),
              $this->path($to)
          );
      }
code_tokens: public function copy ( $ from , $ to ) { return $ this -> filesystem -> copy ( $ this -> path ( $ from ) , $ this -> path ( $ to ) ) ; }
docstring: Copy a file to a new location.
  
  @param  string $from
  @param  string $to
  @return bool
docstring_tokens: Copy a file to a new location .