[**brk-client**](../README.md) *** [brk-client](../globals.md) / RangeBuilder # Interface: RangeBuilder\ Defined in: [Developer/brk/modules/brk-client/index.js:1785](https://github.com/bitcoinresearchkit/brk/blob/76e08a33afe7d878b09f4359c21ffd6183727e32/modules/brk-client/index.js#L1785) ## Type Parameters ### T `T` ## Properties ### fetch > **fetch**: (`arg?`, `options?`) => `Promise`\<[`SeriesData`](../type-aliases/SeriesData.md)\<`T`\>\> Defined in: [Developer/brk/modules/brk-client/index.js:1786](https://github.com/bitcoinresearchkit/brk/blob/76e08a33afe7d878b09f4359c21ffd6183727e32/modules/brk-client/index.js#L1786) Fetch the range #### Parameters ##### arg? [`SeriesFetchArg`](../type-aliases/SeriesFetchArg.md)\<`T`\> ##### options? [`ClientFetchOptions`](ClientFetchOptions.md)\<[`SeriesData`](../type-aliases/SeriesData.md)\<`T`\>\> #### Returns `Promise`\<[`SeriesData`](../type-aliases/SeriesData.md)\<`T`\>\> *** ### fetchCsv > **fetchCsv**: (`options?`) => `Promise`\<`string`\> Defined in: [Developer/brk/modules/brk-client/index.js:1787](https://github.com/bitcoinresearchkit/brk/blob/76e08a33afe7d878b09f4359c21ffd6183727e32/modules/brk-client/index.js#L1787) Fetch as CSV #### Parameters ##### options? [`ClientFetchOptions`](ClientFetchOptions.md)\<`string`\> #### Returns `Promise`\<`string`\> *** ### then > **then**: [`Thenable`](../type-aliases/Thenable.md)\<`T`\> Defined in: [Developer/brk/modules/brk-client/index.js:1788](https://github.com/bitcoinresearchkit/brk/blob/76e08a33afe7d878b09f4359c21ffd6183727e32/modules/brk-client/index.js#L1788) Thenable