[**brk-client**](../README.md) *** [brk-client](../globals.md) / SeriesTree\_Indexes\_Minute30 # Interface: SeriesTree\_Indexes\_Minute30 Defined in: [Developer/brk/modules/brk-client/index.js:6123](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L6123) ## Properties ### firstHeight > **firstHeight**: [`SeriesPattern4`](../type-aliases/SeriesPattern4.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:6124](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L6124)