from typing import Dict


def merge_dicts(dict_a: Dict, dict_b: Dict) -> Dict:
    """Merge two dictionaries.

    Arguments:
        dict_a (dict): The dictionary to use as the base.
        dict_b (dict): The dictionary to update the values with.

    Returns:
        dict: A new merged dictionary.

    """
    dict_z = dict_a.copy()
    dict_z.update(dict_b)
    return dict_z