func MyPrintf(args ...interface{}) {
for _, arg := range args {
switch arg.(type) {
case int:
fmt.Println(arg, "is an int value.")
case string:
fmt.Println(arg, "is a string value.")
case int64:
fmt.Println(arg, "is an int64 value.")
default:
fmt.Println(arg, "is an unknown type.")
}
}
}

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