How do I concatenate dicts in Python with type hints?

In Python, you can concatenate dictionaries using several methods. Below is an example of how to do this with type hints.


from typing import Dict

def concatenate_dicts(dict1: Dict[str, int], dict2: Dict[str, int]) -> Dict[str, int]:
    return {**dict1, **dict2}

# Example usage
dict_a = {'a': 1, 'b': 2}
dict_b = {'c': 3, 'd': 4}
result = concatenate_dicts(dict_a, dict_b)
print(result)  # Output: {'a': 1, 'b': 2, 'c': 3, 'd': 4}