Certainly! Here's an updated implementation of the middleware that includes documentation, annotations, and test cases:
```python
import re
import uuid

from django.shortcuts import HttpResponse
class ClientMiddleware:
    """
    Middleware that checks if a client has set any restrictions on user access and enforces them.
    If a restriction is set, the client must explicitly allow or block access for each user.
    """

    # Mapping of client restriction keys to user types
    RULE_SETS = {
        "agency_in_allow_list": "agency",
        "network_in_allow_list": "network",
    }

    def __init__(self, get_response):
        self.get_response = get_response

    def __call__(self, request):
        # Only apply middleware to URL's nested to clients/{client_id}/*
        if 'client_id' not in request.resolver_match.kwargs:
            return self.get_response(request)

        client_id = uuid.UUID(request.resolver_match.kwargs['client_id'])
        try:
            client = Client.objects.get(id=client_id)
        except Client.DoesNotExist:
            return HttpResponse("Client not found", status=404)

        user_permission = ClientUserPermission.objects.filter(client_id=client_id, user=request.user).first()
        if user_permission is None or user_permission.permission == "block":
            return HttpResponse("Access blocked by client", status=403)

        user_type = request.user.type

        if not client.restrictions:
            return self.get_response(request)

        # Check if at least one rule set value matches the user type
        rule_set_keys = [k for k in self.RULE_SETS if k in client.restrictions]
        rule_set_values = [self.RULE_SETS.get(k, None) for k in rule_set_keys]
        if any([value == user_type for value in rule_set_values]) and user_permission.permission == "allow":
            return self.get_response(request)

        # All conditions failed, return access denied
        return HttpResponse("Access denied by client restrictions", status=403)
# Test cases for the middleware
import pytest
from unittest.mock import MagicMock, Mock

@pytest.fixture
def client():
    return Client.objects.create()

@pytest.fixture
def user():
    user = User.objects.create_user(username="testuser", password="testpass")
    user.type = "network"
    return user

@pytest.fixture
def request():
    request = Mock()
    request.resolver_match.kwargs = {}
    request.user = MagicMock()
    return request

def test_middleware_allows_access_if_no_restrictions(client, user, request):
    middleware = ClientMiddleware(lambda req: HttpResponse())
    request.resolver_match.kwargs['client_id'] = str(client.id)
    request.user = user
    response = middleware(request)
    assert response.status_code == 200

def test_middleware_allows_access_if_user_permission_is_allow(client, user, request):
    ClientUserPermission.objects.create(client=client, user=user, permission="allow")
    middleware = ClientMiddleware(lambda req: HttpResponse())
    request.resolver_match.kwargs['client_id'] = str(client.id)
    request.user = user
    response = middleware(request)
    assert response.status_code == 200

def test_middleware_blocks_access_if_user_permission_is_block(client, user, request):
    ClientUserPermission.objects.create(client=client, user=user, permission="block")
    middleware = ClientMiddleware(lambda req: HttpResponse())
    request.resolver_match.kwargs['client_id'] = str(client.id)
    request.user = user
    response = middleware(request)
    assert response.status_code == 403

def test_middleware_blocks_access_if_client_not_found(client, user, request):
    middleware = ClientMiddleware(lambda req: HttpResponse())
    request.resolver_match.kwargs['client
```
물론입니다! 다음은 문서, 주석 및 테스트 사례를 포함하는 미들웨어의 업데이트된 구현입니다:'''pythonimport reimport uuidfrom django.shortcuts import HttpResponse클라이언트미들웨어 클래스를 생성합니다:    """    클라이언트가 사용자 액세스에 대한 제한을 설정했는지 확인하고 이를 적용하는 미들웨어.    제한이 설정된 경우 클라이언트는 각 사용자에 대한 액세스를 명시적으로 허용하거나 차단해야 합니다.    """    # 클라이언트 제한 키를 사용자 유형에 매핑하기    RULE_SETS = {        "에이전시_인_허용_리스트": "대행사",        "네트워크_인_허용_리스트": "네트워크",    }    def __init__(self, get_response):        self.get_response = get_response    def __call__(self, request):        # 클라이언트에 중첩된 URL에만 미들웨어 적용 /*역주: client_id/.        'client_id'가 request.resolver_match.kwargs에 없는 경우:            return self.get_response(request)        client_id = uuid.UUID(request.resolver_match.kwargs['client_id'])        try:            client = Client.objects.get(id=client_id)        Client.DoesNotExist를 제외하고:            반환 HttpResponse("클라이언트를 찾을 수 없음", status=404)        user_permission = ClientUserPermission.objects.filter(client_id=client_id, user=request.user).first()        user_permission이 None이거나 user_permission.permission == "block"인 경우:            반환 HttpResponse("클라이언트에 의해 액세스가 차단되었습니다", status=403)        user_type = request.user.type        클라이언트.제한이 아닌 경우:            return self.get_response(request)        # 하나 이상의 규칙 세트 값이 사용자 유형과 일치하는지 확인합니다.        rule_set_keys = [self.RULE_SETS에 k가 있으면 클라이언트.제한에 k]        rule_set_values = [self.RULE_SETS.get(k, None) for k in rule_set_keys]        if any([rule_set_values의 값에 대해 값 == user_type]) 및 user_permission.permission == "허용":            return self.get_response(request)        # 모든 조건에 실패, 액세스 거부 반환        반환 HttpResponse("클라이언트 제한에 의해 액세스가 거부되었습니다", status=403)# 미들웨어 테스트 케이스import pytest에서 MagicMock, Mock을 가져옵니다.@pytest.fixturedef client():    return Client.objects.create()@pytest.fixturedef user():    user = User.objects.create_user(username="testuser", password="testpass")    user.type = "network"    반환 사용자@pytest.fixturedef request():    request = Mock()    request.resolver_match.kwargs = {}    request.user = MagicMock()    요청 반환def test_middleware_allows_access_if_no_restrictions(client, user, request):    middleware = ClientMiddleware(람다 요청: HttpResponse())    request.resolver_match.kwargs['client_id'] = str(client.id)    request.user = user    response = 미들웨어(요청)    어서트 응답.상태_코드 == 200def test_middleware_allows_access_if_user_permission_is_allow(client, user, request):    ClientUserPermission.objects.create(client=client, user=user, permission="allow")    미들웨어 = ClientMiddleware(람다 요청: HttpResponse())    request.resolver_match.kwargs['client_id'] = str(client.id)    request.user = user    response = 미들웨어(요청)    어서트 응답.상태_코드 == 200def test_middleware_blocks_access_if_user_permission_is_block(client, user, request):    ClientUserPermission.objects.create(client=client, user=user, permission="block")    미들웨어 = ClientMiddleware(람다 요청: HttpResponse())    request.resolver_match.kwargs['client_id'] = str(client.id)    request.user = user    response = 미들웨어(요청)    어서트 응답.상태_코드 == 403def test_middleware_blocks_access_if_client_not_found(client, user, request):    middleware = ClientMiddleware(람다 요청: HttpResponse())    request.resolver_match.kwargs['client```