How to make a string variable with multiline value?

How to make a string variable with multiline value?

Hi, 

I want to declare a string variable which has more than one line of strings. I have tried 

myString = `Line one of string
Line 2 of string
And so on....`;

But it seems back tick for multiline variables is not supported by deluge "programming language".

Is there any way to declare multiline string variables in deluge?

    Nederlandse Hulpbronnen