[**brk-client**](../README.md) *** [brk-client](../globals.md) / MetricsTree\_Indexes\_Difficultyepoch # Interface: MetricsTree\_Indexes\_Difficultyepoch Defined in: [Developer/brk/modules/brk-client/index.js:3529](https://github.com/bitcoinresearchkit/brk/blob/8a938c00f6edf1f447532c02f94f3a13fd7da30e/modules/brk-client/index.js#L3529) ## Properties ### firstHeight > **firstHeight**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3530](https://github.com/bitcoinresearchkit/brk/blob/8a938c00f6edf1f447532c02f94f3a13fd7da30e/modules/brk-client/index.js#L3530) *** ### heightCount > **heightCount**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3531](https://github.com/bitcoinresearchkit/brk/blob/8a938c00f6edf1f447532c02f94f3a13fd7da30e/modules/brk-client/index.js#L3531) *** ### identity > **identity**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3532](https://github.com/bitcoinresearchkit/brk/blob/8a938c00f6edf1f447532c02f94f3a13fd7da30e/modules/brk-client/index.js#L3532)