# admin/account/proxies/lab_feature.py
class LabFeature:
    @classmethod
    def is_enabled(cls, lab_id, feature_name):
        """Check if feature is enabled for lab"""
        features = cache.get(f"lab_features_{lab_id}")
        if not features:
            features = cls.objects.filter(
                labId_id=lab_id
            ).values("feature_name", "is_active")
            cache.set(f"lab_features_{lab_id}", features)
        
        return any(
            f["is_active"] for f in features 
            if f["feature_name"] == feature_name
        )

admin/account/proxies/
├── lab_feature.py      # Feature flag access
├── lab_setting.py      # Settings access
├── lab_relation.py     # Multi-lab relationships
├── icd_list_details.py # ICD code lookup
└── ... (20 files)

# Lab settings are heavily cached
LabSetting.objects.filter(labId_id=lab_id).values()

# Cache key pattern: lab_settings_{lab_id}

# Get labs in hierarchy
LabRelations.get_child_labs(parent_lab_id)

# Query across labs
AllTests.objects.filter(
    labId_id__in=lab_ids
).select_related("category")