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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 initialize_segment_register_x64(self, state, concrete_target):
 """ Set the fs register in the angr to the value of the fs register in the concrete process :param state: state which will be modified :param concrete_target: concrete target that will be used to read the fs register :return: None """

        _l.debug("Synchronizing fs segment register")
        state.regs.fs = self._read_fs_register_x64(concrete_target)