pub fn string(&mut self) -> String {
        self.or();

        let mut s = String::new();
        for e in self.chunks.iter() {
            s += char::try_from(*e).unwrap().to_string().as_str();
        }

        return s;
    }
/// returns the chunks as polyline in base64
returns the chunks as polyline in base64
returns the chunks as polyline in base64
pub fn string(&mut self) -> String {
        self.or();
        let mut s = String::new();
        for e in self.chunks.iter() {
            s += char::try_from(*e).unwrap().to_string().as_str();
        }
        return s;
    }
pub fn string ( & mut self ) -> String { self . or ( ) ; let mut s = String :: new ( ) ; for e in self . chunks . iter ( ) { s += char :: try_from ( * e ) . unwrap ( ) . to_string ( ) . as_str ( ) ; } return s ; }
returns the chunks as polyline in base64
returns the chunks as polyline in base64
&mut self
&mut self