TS1046: Top-level declarations in .d.ts files must start with either a 'declare' or 'export' modifier.

The index.d.ts file declaring `class Markup extends Component...` (line 26) should read
`declare class Markup extends Component...`

Otherwise the newer versions of TS will complain.

PR #47 will resolve this.

Open index.d.ts and inspect the top-level class declaration at line 26. Add the required modifier described in the issue, then verify that newer TypeScript versions no longer report TS1046; note that the issue says PR #47 will resolve it.

Written by the indexing model from the issue text.