import org.jetbrains.kotlinx.dataframe.*
import org.jetbrains.kotlinx.dataframe.annotations.*
import org.jetbrains.kotlinx.dataframe.api.*
import org.jetbrains.kotlinx.dataframe.io.*

fun box(): String {
    val personsDf = dataFrameOf("name", "age", "city", "weight", "height", "yearsToRetirement")(
        "Alice", 15, "London", 99.5, "1.85", 50,
        "Bob", 20, "Paris", 140.0, "1.35", 45,
        "Charlie", 100, "Dubai", 75.0, "1.95", 0,
        "Rose", 1, "Moscow", 45.33, "0.79", 64,
        "Dylan", 35, "London", 23.4, "1.83", 30,
        "Eve", 40, "Paris", 56.72, "1.85", 25,
        "Frank", 55, "Dubai", 78.9, "1.35", 10,
        "Grace", 29, "Moscow", 67.8, "1.65", 36,
        "Hank", 60, "Paris", 80.22, "1.75", 5,
        "Isla", 22, "London", 75.1, "1.85", 43,
    )

    val res = personsDf.distinct { name and age }
    res.name
    res.age
    res.compareSchemas()
    return "OK"
}