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kotlinlang

`str` is an implicitly predefined variable

I am sorry. What do you mean by `implicitly predefined variable`? Do you mean it has been defined earlier in the code? Where is it defined?

thats the `implicit` part, its nowhere defined

```
...
val str = "some string"
...
fun reformat(str: String,
             normalizeCase: Boolean = true,
             upperCaseFirstLetter: Boolean = true,
             divideByCamelHumps: Boolean = false,
             wordSeparator: Char = ' ') {
...
}
...
reformat(str, true, true, false, '_')
```

Oh okay so it has been defined somewhere earlier in the code.