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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def is_empty(self):
 """Checks for an empty image. """

        if(((self.channels == []) and (not self.shape == (0, 0))) or
           ((not self.channels == []) and (self.shape == (0, 0)))):
            raise RuntimeError("Channels-shape mismatch.")
        return self.channels == [] and self.shape == (0, 0)