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kotlinlang

Hi!
I'm trying to use kovenant after JS background, and can't understand how to chain promisies one after one.

For example i have two async method getMyFirstValue() : Promise&lt;Int, Exception&gt; and getMySecondValue(param: Int) : Promise&lt;Boolean, Exception&gt;, that get Int from first method and recieve boolean.

Now i want to chain them and get something like:
    public fun getMyValues(): Promise&lt;Boolean, Exception&gt; {
        return getMyFirstValue() then {
            getMySecondValue(it);
        }
    };

But i recieve type mismatch error:
Required: Promise&lt;Boolean, Exception&gt;
Found: Promise&lt;Promise&lt;Boolean, Exception&gt;&gt;