How to validate structure (or schema) of dictionary in Python?

I have a dictionary with config info:

my_conf = {'version': 1,'info': {'conf_one': 2.5,'conf_two': 'foo','conf_three': False,'optional_conf': 'bar'    }}

I want to check if the dictionary follows the structure I need.

I'm looking for something like this:

conf_structure = {'version': int,'info': {'conf_one': float,'conf_two': str,'conf_three': bool    }}is_ok = check_structure(conf_structure, my_conf)

Is there any solution done to this problem or any library that could make implementing check_structure more easy?