def METHOD_NAME(self):
    def locus_from_import_vcf(rg: Optional[str]) -> HailType:
        return hl.import_vcf(resource('sample2.vcf'), reference_genome=rg).locus.dtype
    assert tlocus._schema_from_rg(None) == locus_from_import_vcf(None)
    assert tlocus._schema_from_rg('GRCh37') == locus_from_import_vcf('GRCh37')
    assert tlocus._schema_from_rg('GRCh38') == locus_from_import_vcf('GRCh38')
    assert tlocus._schema_from_rg('GRCm38') == locus_from_import_vcf('GRCm38')
    assert tlocus._schema_from_rg('CanFam3') == locus_from_import_vcf('CanFam3')
    assert tlocus._schema_from_rg('default') == locus_from_import_vcf('default')