code: func (c *Debugger) SetReturnValue(newValue *RuntimeCallArgument) (*gcdmessage.ChromeResponse, error) {
  	var v DebuggerSetReturnValueParams
  	v.NewValue = newValue
  	return c.SetReturnValueWithParams(&v)
  }
docs: // SetReturnValue - Changes return value in top frame. Available only at return break position.
  // newValue - New return value.