def __init__(self, values=None):
        if values is None:
            values = {}
        self._values = values
Called by ``docx.opc.package.PartFactory`` to load an image part from
dataset/ETHPy150Open codeinn/vcs/vcs/backends/git/config.py/ConfigDict.__init__--crossover with--dataset/ETHPy150Open python-openxml/python-docx/docx/parts/image.py/ImagePart.load