Unsure of correct type and using ‘any’ causes compile error due to type-safety

I have this in my Landing.tsx:

<Pless handleClose={this.hidePless} showPless={this.state.showPlessPrompt} />

hidePless = () => {
this.setState({ showPlessPrompt: false });
};

In my Pless.tsx I have:

interface Props {
    handleClose: any;
    showPless: boolean;
}

export class Pless extends React.Component<Props> {
    constructor(props: Props) {
        super(props);
    }
    ...
}

When I run my application I get this:

Failed to compile.
C:/Users/…/Paperless.tsx
(6,18): Type declaration of ‘any’ loses type-safety. Consider replacing it with a more precise type.

Most likely a silly question but what should the type be?