# toString method

String toString ()
override

Returns a string representation of this object.

## Implementation

    String toString() {
      var safeString = Error.safeToString(unsupportedObject);
      String prefix;
      if (cause != null) {
        prefix = "Converting object to an encodable object failed:";
      } else {
        prefix = "Converting object did not return an encodable object:";
      }
      return "$prefix $safeString";
    }