React components not extendable as props interfaces are private in .d.ts files

Issue Description

React components not extendable as props interfaces are private in .d.ts files:

// SystemMessage.d.ts

// here props interface is not exported
interface SystemMessageProps<TMessage extends IMessage> {
    currentMessage?: TMessage;
    containerStyle?: StyleProp<ViewStyle>;
    wrapperStyle?: StyleProp<ViewStyle>;
    textStyle?: StyleProp<TextStyle>;
}
export default class SystemMessage<TMessage extends IMessage = IMessage> extends Component<SystemMessageProps<TMessage>> {

// GiftedChat.d.ts

// only class definition is used
import SystemMessage from './SystemMessage';

// only class is exported from definition file
export { ..., SystemMessage, ... };

Steps to Reproduce / Code Snippets

import { SystemMessageProps } from 'react-native-gifted-chat'; // TS2305: Module '"node_modules/react-native-gifted-chat/lib"' has no exported member 'SystemMessageProps'.

interface Props extends SystemMessageProps {
  currentMessage: SomeOtherCompatibleType;
}

export class SystemMessage extends React.Component<Props> {
  render() {
    const { currentMessage, containerStyle } = this.props; // TS2339: Property 'containerStyle' does not exist on type 'Readonly<Props> & Readonly<{ children?: ReactNode; }>'.

    return (
      ...
    );
  }
}

Expected Results

Props interfaces exported in .d.ts files.

Additional Information

• react-native-gifted-chat version: 0.9.7

[xcarpentier]

done on the latest version: v0.9.8

[ankhzet]

It seems, I can’t reopen the issue, if I’m not the one who closed it: https://stackoverflow.com/a/21333938/2109067 I can create new issue, if you okay with that, or just cook-up a PR.