fun String.replaceIndentByMargin( newIndent: String = "", marginPrefix: String = "|" ): String
Detects indent by marginPrefix as it does trimMargin and replace it with newIndent.
 marginPrefix - non-blank string, which is used as a margin delimiter. Default is | (pipe character).
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    https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/replace-indent-by-margin.html