A unicode string of text.
Any other type (except bytes) can be
                    cast to and from a string:
db>
SELECT <str>42;{'42'}db>
SELECT <bool>'true';{true}db>
SELECT "I ❤️ EdgeDB";{'I ❤️ EdgeDB'}Note that when a str is cast into a json,
                    the result is a JSON string value. Same applies for casting back
                    from json - only a JSON string value can be cast into
                    a str:
db>
SELECT <json>'Hello, world';{'"Hello, world"'}There are two kinds of string literals in EdgeQL: regular and raw.
                    Raw string literals do not evaluate \, so \n in in a raw string
                    is two characters \ and n.
The regular string literal syntax is 'a string' or a "a string".
                    Two raw string syntaxes are illustrated below:
db>
SELECT r'a raw \\\ string';{'a raw \\\ string'}db>
SELECT $$something$$;{'something'}db> ...
SELECT $marker$something $$
nested \!$$$marker$;{'something $$
nested \!$$'}Regular strings use \ to indicate line continuation. When a
                    line continuation symbol is encountered, the symbol itself as well
                    as all the whitespace characters up to the next non-whitespace
                    character are omitted from the string:
db> ...
SELECT 'Hello, \
        world';{'"Hello, world"'}Scalar type SDL, DDL, introspection, string functions and operators, and string literal lexical structure.