How to use the goatools.anno.factory.get_objanno function in goatools

def _get_objanno(fin_anno, anno_type=None, **kws):
    """Get association object"""
    full_anno = os.path.join(REPO, fin_anno)
    dnld_annofile(full_anno, anno_type)
    obj = get_objanno(full_anno, anno_type, **kws)
    return obj

def get_objanno(fin_anno, anno_type=None, **kws):
        """Get association object"""
        full_anno = os.path.join(REPO, fin_anno)
        dnld_annofile(full_anno, anno_type)
        obj = get_objanno(full_anno, anno_type, **kws)
        return obj

def get_objanno(fin_anno, godag, namespace='all'):
    """Get annotation object"""
    fin_full = get_anno_fullname(fin_anno)
    return get_objanno_factory(fin_full, godag=godag, namespace=namespace)

def _get_objanno(fin_anno, anno_type=None, **kws):
    """Get association object"""
    full_anno = os.path.join(REPO, fin_anno)
    dnld_annofile(full_anno, anno_type)
    obj = get_objanno(full_anno, anno_type, **kws)
    return obj

def _get_objanno(fin_anno, anno_type=None, **kws):
    """Get association object"""
    full_anno = os.path.join(REPO, fin_anno)
    dnld_annofile(full_anno, anno_type)
    obj = get_objanno(full_anno, anno_type, **kws)
    if obj.name in {'gene2go', 'gaf'} or 'godag' in kws:
        assert hasattr(obj.associations[0], 'NS')
    # Check namespaces, if provided by the user
    if 'namespaces' in kws:
        _chk_namespaces(obj, kws['namespaces'])
    return obj

def _get_objanno(fin_anno, anno_type=None, **kws):
    """Get association object"""
    full_anno = os.path.join(REPO, fin_anno)
    dnld_annofile(full_anno, anno_type)
    obj = get_objanno(full_anno, anno_type, **kws)
    return obj

def test_update_association():
    """Compare new propagate cnts function with original function. Test assc results is same."""

    print('\n1) READ GODAG:')
    assc_name = "goa_human.gaf" # gene_association.fb gene_association.mgi
    obo = os.path.join(REPO, "go-basic.obo")
    tic = timeit.default_timer()
    godag = get_godag(obo)
    tic = prt_hms(tic, "Created two GODags: One for original and one for new propagate counts")

    print('\n2) READ ANNOTATIONS:')
    assc_orig = dnld_assc(os.path.join(REPO, assc_name), godag)
    tic = prt_hms(tic, "Associations Read")
    objanno = get_objanno(os.path.join(REPO, assc_name), 'gaf', godag=godag)
    tic = prt_hms(tic, "Associations Read")

    print('\n3) MAKE COPIES OF ASSOCIATIONS:')
    assc1 = {g:set(gos) for g, gos in assc_orig.items()}
    assc2 = {g:set(gos) for g, gos in assc_orig.items()}
    tic = prt_hms(tic, "Associations Copied: One for original and one for new")

    print('\n4) UPDATE ASSOCIATIONS (PROPAGATE COUNTS):')
    godag.update_association(assc1)
    tic = prt_hms(tic, "ORIG: godag.update_association(assc)")
    update_association(assc2, godag)
    tic = prt_hms(tic, "NEW SA:    update_association(go2obj, assc_orig)")
    assc3 = objanno.get_id2gos(namespace='BP', propagate_counts=True)
    tic = prt_hms(tic, "NEW BASE:  update_association(go2obj, assc_orig)")

    print('\n5) RUN CHECKS')

def _get_objanno(self, assoc_fn):
        """Get an annotation object"""
        # Determine annotation file format from filename, if possible
        anno_type = get_anno_desc(assoc_fn, None)
        # Default annotation file format is id2gos
        if anno_type is None:
            anno_type = self.args.annofmt if self.args.annofmt else 'id2gos'
        # kws: namespaces taxid godag
        kws = self._get_kws_objanno(anno_type)
        return get_objanno(assoc_fn, anno_type, **kws)