input: def optimize_code_with_ai(code_str: str) -> str:
      """Given a string containing code, use AI to optimize the code and return the optimized code as a string.
      >>> optimize_code_with_ai('''function getResult(a, b, c) { return a + b + c; }''')
      "from dataclasses import dataclass\n@dataclass\nclass Params:\n a: int\n b: int\n c: int\ndef get_result(params: Params) -> int:\n return params.a + params.b + params.c\ndef optimize(fn, params):\n best_score = 0\n best_params = None\n for a in range(params.a - 10, params.a + 10):\n for b in range(params.b - 10, params.b + 10):\n for c in range(params.c - 10, params.c + 10):\n score = fn(Params(a, b, c))\n if score > best_score:\n best_score = score\n best_params = {'a': a, 'b': b, 'c': c}\n return best_params\nif __name__ == '__main__':\n params = Params(a=1, b=2, c=3)\n best_params = optimize(get_result, params)\n print(\"Optimized result: %d\" % get_result(Params(best_params['a'], best_params['b'], best_params['c'])))"
      """
output:     import ast
      import astor
  
      class CodeOptimizer(ast.NodeTransformer):
          def visit_FunctionDef(self, node):
              if node.name == 'getResult':
                  node.name = 'get_result'
                  params = [ast.arg(arg=arg.arg, annotation=None) for arg in node.args.args]
                  node.args = ast.arguments(args=[], vararg=None, kwonlyargs=[], kw_defaults=[], kwarg=None, defaults=[], posonlyargs=[], args=[ast.arg(arg='params', annotation=None)])
                  for stmt in node.body:
                      if isinstance(stmt, ast.Return):
                          stmt.value = ast.Attribute(value=ast.Name(id='params', ctx=ast.Load()), attr=params[0].arg, ctx=ast.Load())
                          for i in range(1, len(params)):
                              stmt.value = ast.BinOp(left=stmt.value, op=ast.Add(), right=ast.Attribute(value=ast.Name(id='params', ctx=ast.Load()), attr=params[i].arg, ctx=ast.Load()))
                  node.body.insert(0, ast.Assign(targets=[ast.Name(id='params', ctx=ast.Store())], value=ast.Call(func=ast.Name(id='Params', ctx=ast.Load()), args=[ast.Name(id=param.arg, ctx=ast.Load()) for param in params], keywords=[])))
              return node
  
      def optimize_code_with_ai(code_str: str) -> str:
          tree = ast.parse(code_str)
          optimizer = CodeOptimizer()
          optimizer.visit(tree)
          return astor.to_source(tree)