Structuremap基于源类注入不同的实现

Question

假设我有以下设置

public interface IDocuments {}
public interface IPeople {}

public class Documents : IDocuments 
{
    public Documents(IRepository repo){ ... };
}

public class People : IPeople 
{
    public People(IRepository repo) { ... }
}

public class Controller1 
{
    public Controller1(IDocuments documents){}
}

public class Controller2
{
    public Controller2(IDocuments documents, IPeople people){}
}

如何设置StructureMap以将不同的IRepository瞬态实例注入Controller1和Controller2的依赖链中。

所以澄清一下：

应该有2个IRepository实例。

第一个实例将被注入到controller1的文档实例中。

第二个实例将被注入到controller2的Documents and People实例中。