In prefix.js: ``` var Promise = require("promise”)...
# javascript
b
In prefix.js:
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var Promise = require("promise”);
kotlin:
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kotlin
@native class Promise<T>(f: (resolve: (T) -> Unit, reject: (dynamic) -> Unit) -> Unit) {
    fun then(onFulfilled: (T) -> Unit, onRejected: (dynamic) -> Unit = { }): Promise<T> = noImpl
}

//….
var foo = new Promise<Int>({ …. })