Add sample application core structure for business

core/entities/business.py

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+from dataclasses import dataclass
+
+
+@dataclass
+class Business:
+    ar_name: str = None
+    en_name: str = None

core/interfaces/repositories/business_repository.py

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+from abc import ABC, abstractmethod
+from typing import List
+
+from core.entities.business import Business
+
+
+class BusinessRepository(ABC):
+    @abstractmethod
+    def list(self) -> List[Business]:
+        raise NotImplementedError

core/services/business_service.py

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+from typing import List
+
+from core.entities.business import Business
+from core.interfaces.repositories.business_repository import BusinessRepository
+
+
+class BusinessService:
+    business_repository: BusinessRepository
+
+    def __init__(self, business_repository: BusinessRepository):
+        self.business_repository = business_repository
+
+    def list(self) -> List[Business]:
+        return self.business_repository.list()

tests/test_sample.py

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+class TestSample:
+    def test_true(self):
+        assert 1 == 1