One Checker Work Site

# Example 3: Check one-to-one relationship users = [{'user_id': 1, 'name': 'Alice'}, {'user_id': 2, 'name': 'Bob'}] profiles = [{'user_id': 1, 'bio': 'Engineer'}, {'user_id': 1, 'bio': 'Also artist'}] # Multiple profiles for user 1

clean_data = [ {'id': 1, 'name': 'Alice'}, {'id': 2, 'name': 'Bob'}, {'id': 3, 'name': 'Charlie'} ] one checker

# Example 4: Check single source of truth sources = { 'database': {'is_primary': True}, 'cache': {'is_primary': False}, 'api': {'is_primary': False} } # Example 3: Check one-to-one relationship users =