[**brk-client**](../README.md) *** [brk-client](../globals.md) / MetricsTree\_Indexes\_Difficultyepoch # Interface: MetricsTree\_Indexes\_Difficultyepoch Defined in: [Developer/brk/modules/brk-client/index.js:3889](https://github.com/bitcoinresearchkit/brk/blob/36bc1fb4912b070acbe47217b1be5b7c1096f80f/modules/brk-client/index.js#L3889) ## Properties ### firstHeight > **firstHeight**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3891](https://github.com/bitcoinresearchkit/brk/blob/36bc1fb4912b070acbe47217b1be5b7c1096f80f/modules/brk-client/index.js#L3891) *** ### heightCount > **heightCount**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3892](https://github.com/bitcoinresearchkit/brk/blob/36bc1fb4912b070acbe47217b1be5b7c1096f80f/modules/brk-client/index.js#L3892) *** ### identity > **identity**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3890](https://github.com/bitcoinresearchkit/brk/blob/36bc1fb4912b070acbe47217b1be5b7c1096f80f/modules/brk-client/index.js#L3890)