[**brk-client**](../README.md) *** [brk-client](../globals.md) / SeriesTree\_Indexes\_Minute30 # Interface: SeriesTree\_Indexes\_Minute30 Defined in: [Developer/brk/modules/brk-client/index.js:6169](https://github.com/bitcoinresearchkit/brk/blob/c85da92cbcb3b8645b12f2986df719688adb8dff/modules/brk-client/index.js#L6169) ## Properties ### firstHeight > **firstHeight**: [`SeriesPattern4`](../type-aliases/SeriesPattern4.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:6170](https://github.com/bitcoinresearchkit/brk/blob/c85da92cbcb3b8645b12f2986df719688adb8dff/modules/brk-client/index.js#L6170)