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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 _skip_frame(self):
 """Skip one frame"""

        self._get_line()
        num_atoms = int(self._get_line())
        if self.num_atoms is not None and self.num_atoms != num_atoms:
            raise ValueError("The number of atoms must be the same over the entire file.")
        for i in range(num_atoms+1):
            self._get_line()