[**brk-client**](../README.md) *** [brk-client](../globals.md) / MetricsTree\_Indexes\_Difficultyepoch # Interface: MetricsTree\_Indexes\_Difficultyepoch Defined in: [Developer/brk/modules/brk-client/index.js:3591](https://github.com/bitcoinresearchkit/brk/blob/616a97d242fb82081d065cfef39ccee8acd45c28/modules/brk-client/index.js#L3591) ## Properties ### firstHeight > **firstHeight**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3592](https://github.com/bitcoinresearchkit/brk/blob/616a97d242fb82081d065cfef39ccee8acd45c28/modules/brk-client/index.js#L3592) *** ### heightCount > **heightCount**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3593](https://github.com/bitcoinresearchkit/brk/blob/616a97d242fb82081d065cfef39ccee8acd45c28/modules/brk-client/index.js#L3593) *** ### identity > **identity**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3594](https://github.com/bitcoinresearchkit/brk/blob/616a97d242fb82081d065cfef39ccee8acd45c28/modules/brk-client/index.js#L3594)