import { ResponseIncoming } from "@lodestar/reqresp";
import { SignedBeaconBlock, WithBytes, phase0 } from "@lodestar/types";
import { LodestarError } from "@lodestar/utils";
/**
 * Asserts a response from BeaconBlocksByRange respects the request and is sequential
 * Note: MUST allow missing block for skipped slots.
 */
export declare function collectSequentialBlocksInRange(blockStream: AsyncIterable<ResponseIncoming>, { count, startSlot }: Pick<phase0.BeaconBlocksByRangeRequest, "count" | "startSlot">): Promise<WithBytes<SignedBeaconBlock>[]>;
export declare enum BlocksByRangeErrorCode {
    UNDER_START_SLOT = "BLOCKS_BY_RANGE_ERROR_UNDER_START_SLOT",
    OVER_MAX_SLOT = "BLOCKS_BY_RANGE_ERROR_OVER_MAX_SLOT",
    BAD_SEQUENCE = "BLOCKS_BY_RANGE_ERROR_BAD_SEQUENCE"
}
type BlocksByRangeErrorType = {
    code: BlocksByRangeErrorCode.UNDER_START_SLOT;
} | {
    code: BlocksByRangeErrorCode.OVER_MAX_SLOT;
} | {
    code: BlocksByRangeErrorCode.BAD_SEQUENCE;
};
export declare class BlocksByRangeError extends LodestarError<BlocksByRangeErrorType> {
}
export {};
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