private static ForeignKeyAttribute GetForeignKeyAttribute(TypeBase entityType, string propertyName)
=> entityType.GetRuntimeProperties()?.Values
.FirstOrDefault(
p => string.Equals(p.GetSimpleMemberName(), propertyName, StringComparison.OrdinalIgnoreCase) &&
Attribute.IsDefined(p, typeof(ForeignKeyAttribute), inherit: true))
?.GetCustomAttribute <ForeignKeyAttribute>(inherit: true);