[Python] How do I merge two dictionaries keeping max value against common keys?

I have two dictionary that look like:

{'r': 2, 'e': 4, 'h': 2, 'k': 4}


and

{'r': 2, 'e': 5, 'y': 2, 'h': 2}


how do I get a dictionary that has all the keys but incase there are keys in both initial dictionaries it keeps the higher value for that key? I want a dictionary that looks like this:

{'e': 5, 'k': 4, 'y': 2, 'h': 2, 'r': 2}


None of the previous answers helped me.

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