Type '(props: {    greeting: string;    who: string;    children?: React.ReactNode;}) => React.DetailedReactHTMLElement<{ greeting: string; who: string; children?: React.ReactNode; }, HTMLElement>' does not satisfy the constraint 'keyof IntrinsicElements | ComponentType<{}> | UnknownSlotProps'.
  Type '(props: {    greeting: string;    who: string;    children?: React.ReactNode;}) => React.DetailedReactHTMLElement<{ greeting: string; who: string; children?: React.ReactNode; }, HTMLElement>' is not assignable to type 'FunctionComponent<{}>'.
    Types of parameters 'props' and 'props' are incompatible.
      Type '{ children?: ReactNode; }' is missing the following properties from type '{ greeting: string; who: string; children?: ReactNode; }': greeting, who ts(2344)