public void CreateWithOneToManyRelationship()
{
IBaseEntity stringType = entityContext.ProxySet <IAttributeType>("AttributeType")
.Single(attr => attr.ClrName == "System.String");
IBaseEntity entity = entityContext.Create("Entity");
entity.SetAttributeValue("Name", nameof(CreateWithManyToOneRelationship));
IBaseEntity attribute = entityContext.Create("Attribute");
attribute.SetAttributeValue("Name", "Attribute_" + nameof(CreateWithManyToOneRelationship));
entity.AddMemberToRelationship("Attributes", attribute);
entityContext.Set("Entity").Add(entity);
entityContext.SaveChanges();
}