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#

# Source code for ase.visualize

    # fmt: off

    import ase.parallel as parallel

    def view(atoms, data=None, viewer='ase', repeat=None, block=False, **kwargs):
        from ase.visualize.viewers import VIEWERS

        if parallel.world.size > 1:
            return None

        vwr = VIEWERS[viewer.lower()]
        handle = vwr.view(atoms, data=data, repeat=repeat, **kwargs)

        if block and hasattr(handle, 'wait'):
            status = handle.wait()
            if status != 0:
                raise RuntimeError(f'Viewer "{vwr.name}" failed with status '
                                   '{status}')

        return handle