[**brk-client**](../README.md) *** [brk-client](../globals.md) / SeriesTree\_Indexes\_Minute30 # Interface: SeriesTree\_Indexes\_Minute30 Defined in: [Developer/brk/modules/brk-client/index.js:6190](https://github.com/bitcoinresearchkit/brk/blob/9879a986aa1b6609c39bacbd2ccae5519598e212/modules/brk-client/index.js#L6190) ## Properties ### firstHeight > **firstHeight**: [`SeriesPattern4`](../type-aliases/SeriesPattern4.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:6191](https://github.com/bitcoinresearchkit/brk/blob/9879a986aa1b6609c39bacbd2ccae5519598e212/modules/brk-client/index.js#L6191)