[**brk-client**](../README.md) *** [brk-client](../globals.md) / MetricSelection # Interface: MetricSelection Defined in: [Developer/brk/modules/brk-client/index.js:452](https://github.com/bitcoinresearchkit/brk/blob/4a06caec672337d1974d77b021e6d10711049dbe/modules/brk-client/index.js#L452) ## Properties ### end? > `optional` **end**: `number` \| `null` Defined in: [Developer/brk/modules/brk-client/index.js:456](https://github.com/bitcoinresearchkit/brk/blob/4a06caec672337d1974d77b021e6d10711049dbe/modules/brk-client/index.js#L456) Exclusive ending index, if negative counts from end *** ### format? > `optional` **format**: [`Format`](../type-aliases/Format.md) Defined in: [Developer/brk/modules/brk-client/index.js:458](https://github.com/bitcoinresearchkit/brk/blob/4a06caec672337d1974d77b021e6d10711049dbe/modules/brk-client/index.js#L458) Format of the output *** ### index > **index**: [`Index`](../type-aliases/Index.md) Defined in: [Developer/brk/modules/brk-client/index.js:454](https://github.com/bitcoinresearchkit/brk/blob/4a06caec672337d1974d77b021e6d10711049dbe/modules/brk-client/index.js#L454) Index to query *** ### limit? > `optional` **limit**: `number` \| `null` Defined in: [Developer/brk/modules/brk-client/index.js:457](https://github.com/bitcoinresearchkit/brk/blob/4a06caec672337d1974d77b021e6d10711049dbe/modules/brk-client/index.js#L457) Maximum number of values to return (ignored if `end` is set) *** ### metrics > **metrics**: `string` Defined in: [Developer/brk/modules/brk-client/index.js:453](https://github.com/bitcoinresearchkit/brk/blob/4a06caec672337d1974d77b021e6d10711049dbe/modules/brk-client/index.js#L453) Requested metrics *** ### start? > `optional` **start**: `number` \| `null` Defined in: [Developer/brk/modules/brk-client/index.js:455](https://github.com/bitcoinresearchkit/brk/blob/4a06caec672337d1974d77b021e6d10711049dbe/modules/brk-client/index.js#L455) Inclusive starting index, if negative counts from end