def tag_function(entry):
    """
    Default tag function
    Given a PDB report entry, generate a list of tags to apply to the entry when created in the database.

    This function can be overridden through the PDB_TAG_FUNCTION settings variable
    :param entry:
    :return:
    """
    return [entry['diffrn_source.pdbx_synchrotron_beamline'].split()[-1],]