original_string: public function in($format = '')
      {
          if (empty($format)) {
              $line = fgets(STDIN);
          } else {
              $line = fscanf(STDIN, $format . PHP_EOL, $line);
          }
  
          return trim($line);
      }
code: public function in($format = '')
      {
          if (empty($format)) {
              $line = fgets(STDIN);
          } else {
              $line = fscanf(STDIN, $format . PHP_EOL, $line);
          }
  
          return trim($line);
      }
code_tokens: public function in ( $ format = '' ) { if ( empty ( $ format ) ) { $ line = fgets ( STDIN ) ; } else { $ line = fscanf ( STDIN , $ format . PHP_EOL , $ line ) ; } return trim ( $ line ) ; }
docstring: Reads a user input
  @param string $format
  @return string
docstring_tokens: Reads a user input