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Kotlin FloatArray from Iterable<Float>

Suppose I am using a Java API from Kotlin and I want to call a function that takes a `FloatArray` (represented as `float[]` in Java), and I have an `Iterable<Float>` as my input data type. To be more precise, I have a `MutableList<Triple<Float, Float, Float>>`, and I'm feeding it to the function like this:

```kotlin
val myList: MutableList<Triple<Float, Float, Float>> = getElements()

// Flatten list of tuples down to array of Float
val myIt = myList.flatMap { (x, y, z) -> listOf(x, y, z) }
myFloatBuffer.put(myIt.toList().toFloatArray())
```

From my experimentation, `List<Float>` converts freely to `FloatArray` through `toFloatArray`, but evaluating an iterator into a list and then converting it into an array seems unnecessary at best. Is there an idiomatic way to create a Kotlin `FloatArray` from an `Iterable<Float>`?

Additionally, the above code implies that the goal is to `put` a series of `Float`s into a `FloatBuffer`. Is there a more idiomatic way to accomplish this? Perhaps one that avoids the `FloatArray` altogether?