@staticmethod
def mergeDict(dict1, dict2):
    """Merge dictionaries and keep values of common keys in list"""
    dict3 = {**dict1, **dict2}
    for k, v in dict3.items():
        if k in dict1 and k in dict2:
            if dict1[k] != dict2[k]:
                dict3[k] = [v, dict1[k]]
    return dict3
