[**brk-client**](../README.md) *** [brk-client](../globals.md) / MetricsTree\_Indexes\_Difficultyepoch # Interface: MetricsTree\_Indexes\_Difficultyepoch Defined in: [Developer/brk/modules/brk-client/index.js:3977](https://github.com/bitcoinresearchkit/brk/blob/afe4123a1799221536f346575595e85e3b7040d4/modules/brk-client/index.js#L3977) ## Properties ### firstHeight > **firstHeight**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3979](https://github.com/bitcoinresearchkit/brk/blob/afe4123a1799221536f346575595e85e3b7040d4/modules/brk-client/index.js#L3979) *** ### heightCount > **heightCount**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3980](https://github.com/bitcoinresearchkit/brk/blob/afe4123a1799221536f346575595e85e3b7040d4/modules/brk-client/index.js#L3980) *** ### identity > **identity**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3978](https://github.com/bitcoinresearchkit/brk/blob/afe4123a1799221536f346575595e85e3b7040d4/modules/brk-client/index.js#L3978)