// Program
log("
     Hello,
     I'm a multiline "raw" string
");

// Prints:
Hello,
I'm a multiline "raw" string

 These strings have no problems of their siblings in other languages:

• No need for any special termination symbol/sequence - it's done by indentation.
• Source code indentation is not included in the string.
• Additional indentation can be added in the string to help formatting the output.
• Line end encoding is controlled by developer. It doesn't depend on source code formatting. Make it CR, LF or any combinations.
• Extra indentation, can go in form of tabs or spaces, this is also under developer's control.
• Argentum also takes in account such peculiar details as last line endings and indentations.

More examples and details are here: multiline-string-constants