original_string: public function getExactlyOneClass($fileSource) {
          if (count($this->ast) !== 1 || $this->ast[0]->getType() !== "Stmt_Class")
              throw new PhpParserException("\"$fileSource\" does not define exactly one class");
          return $this->ast[0];
      }
code: public function getExactlyOneClass($fileSource) {
          if (count($this->ast) !== 1 || $this->ast[0]->getType() !== "Stmt_Class")
              throw new PhpParserException("\"$fileSource\" does not define exactly one class");
          return $this->ast[0];
      }
code_tokens: public function getExactlyOneClass ( $ fileSource ) { if ( count ( $ this -> ast ) !== 1 || $ this -> ast [ 0 ] -> getType ( ) !== "Stmt_Class" ) throw new PhpParserException ( "\"$fileSource\" does not define exactly one class" ) ; return $ this -> ast [ 0 ] ; }
docstring: Asserts that the code defines one class and returns it.
  @param string $fileSource
  @return \PhpParser\Node\Stmt\Class_
docstring_tokens: Asserts that the code defines one class and returns it .