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kotlinlang

Hi, supposing I have a `mockInstance` that has a member function `fun foo(arg: MyClass): Int` , and I want to mock the function `foo` only if it takes an arg that is constructed with specific values:
```every { mockInstance.foo(MyClass(1, "a", 0)) } returns 42
every { mockInstance.foo(MyClass(1, "a", 1)) } returns 42
every { mockInstance.foo(MyClass(1, "a", 2)) } returns 42
every { mockInstance.foo(MyClass(1, "a", 3)) } returns 42
every { mockInstance.foo(MyClass(1, "a", 4)) } returns 42
...```
In fact, I would like to say
```every { mockInstance.foo(MyClass(1, "a", any())) } returns 42```
but I can't because the argument passed to `foo` is a real instance of `MyClass` and so I can't pass `any()` to it.
Is there a particular matcher I can use?

<https://mockk.io/#matchers>
```every { mockInstance.foo(match { it.first == 1 &amp;&amp; it.second == "a" }) } returns 42```