input: def fix_sum_list(code: str) -> str:
      """ Fixes any bugs found in the given python code for summing a list of numbers.
      >>> fix_sum_list('def sum_list(list):\n    sum_list = 0\n    for num in list:\n        sum_list += num\n    return sum')
      'def sum_list(l):\n    sum_list = 0\n    for num in l:\n        sum_list += num\n    return sum_list'
      """
output:     code = code.replace('def sum_list(list):', 'def sum_list(l):')
      code = code.replace('return sum', 'return sum_list')
      return code