Raw string literals can contain arbitrary text, including whitespace, new lines, embedded quotes, and other special characters without requiring escape sequences.
string longMessage = """ This is a long message. It has several lines. Some are indented more than others. Some should start at the first column. Some have "quoted text" in them. """;
Raw string literals can be combined with string interpolation to include braces in the output text. Multiple $
characters denote how many consecutive braces start and end the interpolation:
var location = $$""" You are at {{{Longitude}}, {{Latitude}}} """;
References
https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-11#raw-string-literals