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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,7 @@ fun main() {
1. Defines a data class.
2. Destructures an instance. Declared values are mapped to the instance fields.
3. Data class automatically defines the `component1()` and `component2()` methods that will be called during destructuring.
4. Use _underscore_ if you don't need one of the values, avoiding the compiler hint indicating an unused variable.
4. Use _underscore_ if you don't need one of the values, avoiding the compiler hint indicating an unused variable. The second property `email` is renamed to `emailAddress` without having to use additional syntax.

```run-kotlin
class Pair<K, V>(val first: K, val second: V) { // 1
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