[AllureLabel("layer", "unit")]
public class BaseTest
{
// Test methods
}

[AllureStory("User registration")]
public class UserRegistrationTests : BaseTest
{
// Test methods
}

[AllureLabel("layer", "unit")]
public class BaseTest
{
// Test methods
}

public class UserRegistrationTests : BaseTest
{
// Test methods
}

        internal static IEnumerable<IAttributeInfo> GetCustomAttributes(Type type, Type attributeType, AttributeUsageAttribute attributeUsage)
        {
            IEnumerable<IAttributeInfo> results = Enumerable.Empty<IAttributeInfo>();

            if (type != null)
            {
                List<ReflectionAttributeInfo> list = null;
                foreach (CustomAttributeData attr in type.GetTypeInfo().CustomAttributes)
                {
                    if (attributeType.GetTypeInfo().IsAssignableFrom(attr.AttributeType.GetTypeInfo()))
                    {
                        if (list == null)
                            list = new List<ReflectionAttributeInfo>();

                        list.Add(new ReflectionAttributeInfo(attr));
                    }
                }

                if (list != null)
                    list.Sort((left, right) => string.Compare(left.AttributeData.AttributeType.Name, right.AttributeData.AttributeType.Name, StringComparison.Ordinal));

                results = list ?? Enumerable.Empty<IAttributeInfo>();

                if (attributeUsage.Inherited && (attributeUsage.AllowMultiple || list == null))
                    results = results.Concat(GetCustomAttributes(type.GetTypeInfo().BaseType, attributeType, attributeUsage));
            }

            return results;
        }