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x/polkadot/api-derive/chain/subscribeFinalizedHeads.ts>_getHeaderRange

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function _getHeaderRange
import { _getHeaderRange } from "https://dotland.deno.dev/x/polkadot@0.2.38/api-derive/chain/subscribeFinalizedHeads.ts";

Returns a header range from startHash to to (not including) endHash, i.e. lastBlock.parentHash === endHash

Parameters

instanceId: string
api: DeriveApi

Returns

(
startHash: Hash,
endHash: Hash,
prev?: Header[],
) => Observable<Header[]>