@NotNull
    private ExtractableCodeDescriptor createDescriptor() {
        return createNewDescriptor(originalDescriptor.getDescriptor(),
                                   getFunctionName(),
                                   getVisibility(),
                                   parameterTablePanel.getSelectedReceiverInfo(),
                                   parameterTablePanel.getSelectedParameterInfos(),
                                   (KotlinType) returnTypeBox.getSelectedItem());
    }
@NotNull
    private ExtractableCodeDescriptor createDescriptor()