How to use the followthemoney.model.make_entity function in followthemoney

def test_make_id(self):
        proxy = model.make_entity("Thing")
        assert not proxy.make_id(None)
        assert proxy.make_id("banana")
        assert proxy.make_id("banana") == proxy.make_id("banana")
        ff = proxy.make_id(44)
        assert ff is not None
        proxy = model.make_entity("Thing", key_prefix="foo")
        assert proxy.make_id(44)
        assert proxy.make_id(44) != ff, proxy.make_id(44)

proxy.add("name", None)
        assert len(proxy.get("name")) == 2
        proxy.add("name", "")
        assert len(proxy.get("name")) == 2
        proxy.add("name", [""])
        assert len(proxy.get("name")) == 2
        proxy.add("name", {"name": "banana"})
        assert len(proxy.get("name")) == 3, proxy.get("name")
        assert name in proxy.get("name")
        assert name in proxy.names, proxy.names

        with assert_raises(InvalidData):
            proxy.add("banana", "yellow")
        proxy.add("banana", "yellow", quiet=True)

        mem = model.make_entity("Membership")
        mem.id = "foo"
        with assert_raises(InvalidData):
            proxy.add("directorshipDirector", mem)

        with assert_raises(InvalidData):
            proxy.add("sameAs", proxy)

        with assert_raises(InvalidData):
            proxy.get("banana")
        assert [] == proxy.get("banana", quiet=True)

        with assert_raises(InvalidData):
            proxy.first("banana")
        assert proxy.first("banana", quiet=True) is None

        assert len(proxy.get("nationality")) == 0

def make_entity(self, schema):
        return model.make_entity(schema, key_prefix=self.enricher.key_prefix)

def convert_release(release):
    for party in release.pop('parties', []):
        yield convert_party(party)

    buyer = release.pop('buyer', {})
    authority = model.make_entity('LegalEntity')
    authority.make_id(buyer.pop('id', None))
    authority.add('name', buyer.pop('name', None))
    yield authority

    tender = release.pop('tender', {})
    contract = model.make_entity('Contract')
    contract.make_id(release.pop('id', None))
    contract.add('authority', authority)
    contract.add('name', tender.pop('title', None))
    if not contract.has('name'):
        contract.add('name', tender.get('id', None))

    contract.add('description', tender.pop('description', None))
    contract.add('procedureNumber', tender.pop('id', None))
    contract.add('type', tender.pop('mainProcurementCategory', None))
    value = tender.pop('value', {})

if not contract.has('name'):
        contract.add('name', tender.get('id', None))

    contract.add('description', tender.pop('description', None))
    contract.add('procedureNumber', tender.pop('id', None))
    contract.add('type', tender.pop('mainProcurementCategory', None))
    value = tender.pop('value', {})
    contract.add('amount', value.pop('amount', None))
    contract.add('currency', value.pop('currency', None))
    # pprint(tender)
    yield contract

    # contract.add('modifiedAt', published_date)
    lots = tender.pop('lots', [])
    for award in release.pop('awards', []):
        ca = model.make_entity('ContractAward')
        ca.make_id(contract.id, award.pop('id', None))
        ca.add('contract', contract)
        ca.add('date', clean_date(award.pop('date', None)))
        value = award.pop('value', {})
        ca.add('amount', value.pop('amount', None))
        ca.add('currency', value.pop('currency', None))
        reason = tender.get('procurementMethodDetails', None)
        ca.add('decisionReason', reason)

        for document in award.pop('documents', []):
            ca.add('sourceUrl', document.get('url'))

        for item in award.pop('items', []):
            classification = item.pop('classification', {})
            ca.add('cpvCode', classification.get('url'))

def company_entity(self, data, entity=None):
        if "company" in data:
            data = ensure_dict(data.get("company", data))
        if entity is None:
            entity = model.make_entity("Company")
            entity.make_id(data.get("opencorporates_url"))
        entity.add("name", data.get("name"))
        address = ensure_dict(data.get("registered_address"))
        entity.add("country", address.get("country"))
        entity.add("jurisdiction", data.get("jurisdiction_code"))
        entity.add("alias", data.get("alternative_names"))
        entity.add("address", data.get("registered_address_in_full"))
        entity.add("sourceUrl", data.get("registry_url"))
        entity.add("legalForm", data.get("company_type"))
        entity.add("incorporationDate", data.get("incorporation_date"))
        entity.add("dissolutionDate", data.get("dissolution_date"))
        entity.add("status", data.get("current_status"))
        entity.add("registrationNumber", data.get("company_number"))
        entity.add("opencorporatesUrl", data.get("opencorporates_url"))
        source = data.get("source", {})
        entity.add("publisher", source.get("publisher"))

for document in award.pop('documents', []):
            ca.add('sourceUrl', document.get('url'))

        for item in award.pop('items', []):
            classification = item.pop('classification', {})
            ca.add('cpvCode', classification.get('url'))

        related_lots = award.pop('relatedLots', [])
        for lot in lots:
            if lot.get('id') in related_lots:
                ca.add('role', lot.get('title'))
                ca.add('summary', lot.get('description'))

        for supplier in award.pop('suppliers', []):
            entity = model.make_entity('LegalEntity')
            entity.make_id(supplier.pop('id', None))
            entity.add('name', supplier.pop('name', None))
            ca.add('supplier', entity)
            yield entity

        # pprint(award)
        yield ca