original_string: public function filterEmptyLines(array $lines)
      {
          return array_filter($lines, function ($line) {
              $line = trim($line);
  
              return $line !== '*' ? $line : false;
          });
      }
code: public function filterEmptyLines(array $lines)
      {
          return array_filter($lines, function ($line) {
              $line = trim($line);
  
              return $line !== '*' ? $line : false;
          });
      }
code_tokens: public function filterEmptyLines ( array $ lines ) { return array_filter ( $ lines , function ( $ line ) { $ line = trim ( $ line ) ; return $ line !== '*' ? $ line : false ; } ) ; }
docstring: filter lines if they empty
  
  @param array $lines
  @return array
docstring_tokens: filter lines if they empty