from typing import Dict


def normalize(dict_: Dict) -> Dict:
    """
    Normalize the values of a dict.

    Parameters
    ----------
    dict_ : Dict

    Returns
    -------
    argmax : Dict

    Example
    -------
    >>> sorted(normalize({'a': 10, 'b': 70, 'c': 20}).items())
    [('a', 0.1), ('b', 0.7), ('c', 0.2)]
    """
    sum_ = sum(value for key, value in dict_.items())
    dict_ = {key: value / float(sum_) for key, value in dict_.items()}
    return dict_