ess.nmx.mtz_io.get_unique_space_group# ess.nmx.mtz_io.get_unique_space_group(*spacegroups)[source]# Retrieves the unique space group from multiple space groups. Parameters: spacegroups (SpaceGroup | None) – The space groups to check. Returns: SpaceGroup – The unique space group. Raises: ValueError: – If there are multiple space groups.