FUNCTION
json.to_text
pure function to_text(): textConvert this JSON value to text.
Note that this method is different to json.as_text(). This method converts this entire JSON value
to its text representation, regardless of what type of JSON value this is, and does not throw an
exception. json.as_text() retrieves this text-typed JSON value as Rell text, and throws an
exception if this JSON value is not of text type.
Since 0.9.0